Home / 5,572.79-7,688.90-4,390.19

Finding the Fourth Proportional to 5,572.79, 7,688.90 and 4,390.19

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Solution

The fourth proportional to 5,572.79, 7,688.90 and 4,390.19 is: 6,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.79 : 7,688.90 = 4,390.19 : x
  2. Step 2: Convert to fraction form
    5,572.79/7,688.90 = 4,390.19/x
  3. Step 3: Cross multiply
    5,572.79x = 7,688.90 × 4,390.19
  4. Step 4: Simplify right side
    5,572.79x = 33,755,709.94
  5. Step 5: Solve for x
    x = 33,755,709.94/5,572.79
  6. Step 6: Final answer
    x = 6,057.24

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.