Home / 3,508.19-5,262.29-911.13

Finding the Fourth Proportional to 3,508.19, 5,262.29 and 911.13

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Solution

The fourth proportional to 3,508.19, 5,262.29 and 911.13 is: 1,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.19 : 5,262.29 = 911.13 : x
  2. Step 2: Convert to fraction form
    3,508.19/5,262.29 = 911.13/x
  3. Step 3: Cross multiply
    3,508.19x = 5,262.29 × 911.13
  4. Step 4: Simplify right side
    3,508.19x = 4,794,630.29
  5. Step 5: Solve for x
    x = 4,794,630.29/3,508.19
  6. Step 6: Final answer
    x = 1,366.70

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1.5x scale

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.