Home / 1,151.08-1,726.60-285.36

Finding the Fourth Proportional to 1,151.08, 1,726.60 and 285.36

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Solution

The fourth proportional to 1,151.08, 1,726.60 and 285.36 is: 428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.08 : 1,726.60 = 285.36 : x
  2. Step 2: Convert to fraction form
    1,151.08/1,726.60 = 285.36/x
  3. Step 3: Cross multiply
    1,151.08x = 1,726.60 × 285.36
  4. Step 4: Simplify right side
    1,151.08x = 492,702.58
  5. Step 5: Solve for x
    x = 492,702.58/1,151.08
  6. Step 6: Final answer
    x = 428.04

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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.