Home / 1,170.13-1,616.92-1,113.19

Finding the Fourth Proportional to 1,170.13, 1,616.92 and 1,113.19

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Solution

The fourth proportional to 1,170.13, 1,616.92 and 1,113.19 is: 1,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.13 : 1,616.92 = 1,113.19 : x
  2. Step 2: Convert to fraction form
    1,170.13/1,616.92 = 1,113.19/x
  3. Step 3: Cross multiply
    1,170.13x = 1,616.92 × 1,113.19
  4. Step 4: Simplify right side
    1,170.13x = 1,799,939.17
  5. Step 5: Solve for x
    x = 1,799,939.17/1,170.13
  6. Step 6: Final answer
    x = 1,538.24

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.