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Finding the Fourth Proportional to 5,397.86, 7,449 and 3,040.76

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Solution

The fourth proportional to 5,397.86, 7,449 and 3,040.76 is: 4,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.86 : 7,449 = 3,040.76 : x
  2. Step 2: Convert to fraction form
    5,397.86/7,449 = 3,040.76/x
  3. Step 3: Cross multiply
    5,397.86x = 7,449 × 3,040.76
  4. Step 4: Simplify right side
    5,397.86x = 22,650,621.24
  5. Step 5: Solve for x
    x = 22,650,621.24/5,397.86
  6. Step 6: Final answer
    x = 4,196.22

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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.