Home / 1,154.20-1,584.74-1,124.13

Finding the Fourth Proportional to 1,154.20, 1,584.74 and 1,124.13

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Solution

The fourth proportional to 1,154.20, 1,584.74 and 1,124.13 is: 1,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.20 : 1,584.74 = 1,124.13 : x
  2. Step 2: Convert to fraction form
    1,154.20/1,584.74 = 1,124.13/x
  3. Step 3: Cross multiply
    1,154.20x = 1,584.74 × 1,124.13
  4. Step 4: Simplify right side
    1,154.20x = 1,781,453.78
  5. Step 5: Solve for x
    x = 1,781,453.78/1,154.20
  6. Step 6: Final answer
    x = 1,543.45

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.