Home / 4,220.00-6,329.97-1,298.30

Finding the Fourth Proportional to 4,220.00, 6,329.97 and 1,298.30

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Solution

The fourth proportional to 4,220.00, 6,329.97 and 1,298.30 is: 1,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.00 : 6,329.97 = 1,298.30 : x
  2. Step 2: Convert to fraction form
    4,220.00/6,329.97 = 1,298.30/x
  3. Step 3: Cross multiply
    4,220.00x = 6,329.97 × 1,298.30
  4. Step 4: Simplify right side
    4,220.00x = 8,218,168.40
  5. Step 5: Solve for x
    x = 8,218,168.40/4,220.00
  6. Step 6: Final answer
    x = 1,947.44

Related Problems

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Half scale
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Double scale
Find fourth proportional to 4,221, 6,331.47 and 1,299.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.