Home / 5,428.04-7,490.10-3,190.62

Finding the Fourth Proportional to 5,428.04, 7,490.10 and 3,190.62

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Solution

The fourth proportional to 5,428.04, 7,490.10 and 3,190.62 is: 4,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.04 : 7,490.10 = 3,190.62 : x
  2. Step 2: Convert to fraction form
    5,428.04/7,490.10 = 3,190.62/x
  3. Step 3: Cross multiply
    5,428.04x = 7,490.10 × 3,190.62
  4. Step 4: Simplify right side
    5,428.04x = 23,898,062.86
  5. Step 5: Solve for x
    x = 23,898,062.86/5,428.04
  6. Step 6: Final answer
    x = 4,402.71

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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.