Home / 5,290.43-7,294.88-3,612.71

Finding the Fourth Proportional to 5,290.43, 7,294.88 and 3,612.71

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Solution

The fourth proportional to 5,290.43, 7,294.88 and 3,612.71 is: 4,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.43 : 7,294.88 = 3,612.71 : x
  2. Step 2: Convert to fraction form
    5,290.43/7,294.88 = 3,612.71/x
  3. Step 3: Cross multiply
    5,290.43x = 7,294.88 × 3,612.71
  4. Step 4: Simplify right side
    5,290.43x = 26,354,313.19
  5. Step 5: Solve for x
    x = 26,354,313.19/5,290.43
  6. Step 6: Final answer
    x = 4,981.51

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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.