Home / 1,129.19-1,702.22-1,053.91

Finding the Fourth Proportional to 1,129.19, 1,702.22 and 1,053.91

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Solution

The fourth proportional to 1,129.19, 1,702.22 and 1,053.91 is: 1,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129.19 : 1,702.22 = 1,053.91 : x
  2. Step 2: Convert to fraction form
    1,129.19/1,702.22 = 1,053.91/x
  3. Step 3: Cross multiply
    1,129.19x = 1,702.22 × 1,053.91
  4. Step 4: Simplify right side
    1,129.19x = 1,793,983.54
  5. Step 5: Solve for x
    x = 1,793,983.54/1,129.19
  6. Step 6: Final answer
    x = 1,588.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.