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Finding the Fourth Proportional to 5,293.32, 7,940.13 and 2,520.28

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Solution

The fourth proportional to 5,293.32, 7,940.13 and 2,520.28 is: 3,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,293.32 : 7,940.13 = 2,520.28 : x
  2. Step 2: Convert to fraction form
    5,293.32/7,940.13 = 2,520.28/x
  3. Step 3: Cross multiply
    5,293.32x = 7,940.13 × 2,520.28
  4. Step 4: Simplify right side
    5,293.32x = 20,011,350.84
  5. Step 5: Solve for x
    x = 20,011,350.84/5,293.32
  6. Step 6: Final answer
    x = 3,780.49

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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.