Home / 5,387.11-7,433.37-3,398.76

Finding the Fourth Proportional to 5,387.11, 7,433.37 and 3,398.76

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Solution

The fourth proportional to 5,387.11, 7,433.37 and 3,398.76 is: 4,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.11 : 7,433.37 = 3,398.76 : x
  2. Step 2: Convert to fraction form
    5,387.11/7,433.37 = 3,398.76/x
  3. Step 3: Cross multiply
    5,387.11x = 7,433.37 × 3,398.76
  4. Step 4: Simplify right side
    5,387.11x = 25,264,240.62
  5. Step 5: Solve for x
    x = 25,264,240.62/5,387.11
  6. Step 6: Final answer
    x = 4,689.76

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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.