Home / 4,219.99-6,329.93-1,298.32

Finding the Fourth Proportional to 4,219.99, 6,329.93 and 1,298.32

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Solution

The fourth proportional to 4,219.99, 6,329.93 and 1,298.32 is: 1,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.99 : 6,329.93 = 1,298.32 : x
  2. Step 2: Convert to fraction form
    4,219.99/6,329.93 = 1,298.32/x
  3. Step 3: Cross multiply
    4,219.99x = 6,329.93 × 1,298.32
  4. Step 4: Simplify right side
    4,219.99x = 8,218,274.72
  5. Step 5: Solve for x
    x = 8,218,274.72/4,219.99
  6. Step 6: Final answer
    x = 1,947.46

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Half scale
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Double scale
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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.