Home / 1,655.11-2,285.51-1,540.29

Finding the Fourth Proportional to 1,655.11, 2,285.51 and 1,540.29

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Solution

The fourth proportional to 1,655.11, 2,285.51 and 1,540.29 is: 2,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.11 : 2,285.51 = 1,540.29 : x
  2. Step 2: Convert to fraction form
    1,655.11/2,285.51 = 1,540.29/x
  3. Step 3: Cross multiply
    1,655.11x = 2,285.51 × 1,540.29
  4. Step 4: Simplify right side
    1,655.11x = 3,520,348.20
  5. Step 5: Solve for x
    x = 3,520,348.20/1,655.11
  6. Step 6: Final answer
    x = 2,126.96

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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.