Home / 1,162.40-1,743.60-296.70

Finding the Fourth Proportional to 1,162.40, 1,743.60 and 296.70

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Solution

The fourth proportional to 1,162.40, 1,743.60 and 296.70 is: 445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.40 : 1,743.60 = 296.70 : x
  2. Step 2: Convert to fraction form
    1,162.40/1,743.60 = 296.70/x
  3. Step 3: Cross multiply
    1,162.40x = 1,743.60 × 296.70
  4. Step 4: Simplify right side
    1,162.40x = 517,326.12
  5. Step 5: Solve for x
    x = 517,326.12/1,162.40
  6. Step 6: Final answer
    x = 445.05

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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.