Home / 1,132.36-1,552.85-1,115.08

Finding the Fourth Proportional to 1,132.36, 1,552.85 and 1,115.08

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Solution

The fourth proportional to 1,132.36, 1,552.85 and 1,115.08 is: 1,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.36 : 1,552.85 = 1,115.08 : x
  2. Step 2: Convert to fraction form
    1,132.36/1,552.85 = 1,115.08/x
  3. Step 3: Cross multiply
    1,132.36x = 1,552.85 × 1,115.08
  4. Step 4: Simplify right side
    1,132.36x = 1,731,551.98
  5. Step 5: Solve for x
    x = 1,731,551.98/1,132.36
  6. Step 6: Final answer
    x = 1,529.15

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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.