Home / 1,162.60-1,743.87-285.11

Finding the Fourth Proportional to 1,162.60, 1,743.87 and 285.11

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Solution

The fourth proportional to 1,162.60, 1,743.87 and 285.11 is: 427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.60 : 1,743.87 = 285.11 : x
  2. Step 2: Convert to fraction form
    1,162.60/1,743.87 = 285.11/x
  3. Step 3: Cross multiply
    1,162.60x = 1,743.87 × 285.11
  4. Step 4: Simplify right side
    1,162.60x = 497,194.78
  5. Step 5: Solve for x
    x = 497,194.78/1,162.60
  6. Step 6: Final answer
    x = 427.66

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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.