Home / 4,220.23-6,330.68-1,298.53

Finding the Fourth Proportional to 4,220.23, 6,330.68 and 1,298.53

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Solution

The fourth proportional to 4,220.23, 6,330.68 and 1,298.53 is: 1,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.23 : 6,330.68 = 1,298.53 : x
  2. Step 2: Convert to fraction form
    4,220.23/6,330.68 = 1,298.53/x
  3. Step 3: Cross multiply
    4,220.23x = 6,330.68 × 1,298.53
  4. Step 4: Simplify right side
    4,220.23x = 8,220,587.84
  5. Step 5: Solve for x
    x = 8,220,587.84/4,220.23
  6. Step 6: Final answer
    x = 1,947.90

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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.