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Finding the Fourth Proportional to 1,125.90, 1,552.77 and 1,060.29

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Solution

The fourth proportional to 1,125.90, 1,552.77 and 1,060.29 is: 1,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.90 : 1,552.77 = 1,060.29 : x
  2. Step 2: Convert to fraction form
    1,125.90/1,552.77 = 1,060.29/x
  3. Step 3: Cross multiply
    1,125.90x = 1,552.77 × 1,060.29
  4. Step 4: Simplify right side
    1,125.90x = 1,646,386.50
  5. Step 5: Solve for x
    x = 1,646,386.50/1,125.90
  6. Step 6: Final answer
    x = 1,462.28

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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.