Home / 1,129.37-1,689.38-1,060.25

Finding the Fourth Proportional to 1,129.37, 1,689.38 and 1,060.25

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Solution

The fourth proportional to 1,129.37, 1,689.38 and 1,060.25 is: 1,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129.37 : 1,689.38 = 1,060.25 : x
  2. Step 2: Convert to fraction form
    1,129.37/1,689.38 = 1,060.25/x
  3. Step 3: Cross multiply
    1,129.37x = 1,689.38 × 1,060.25
  4. Step 4: Simplify right side
    1,129.37x = 1,791,159.84
  5. Step 5: Solve for x
    x = 1,791,159.84/1,129.37
  6. Step 6: Final answer
    x = 1,585.98

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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.