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Finding the Fourth Proportional to 949.24, 1,310.11 and 576.47

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Solution

The fourth proportional to 949.24, 1,310.11 and 576.47 is: 795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.24 : 1,310.11 = 576.47 : x
  2. Step 2: Convert to fraction form
    949.24/1,310.11 = 576.47/x
  3. Step 3: Cross multiply
    949.24x = 1,310.11 × 576.47
  4. Step 4: Simplify right side
    949.24x = 755,231.20
  5. Step 5: Solve for x
    x = 755,231.20/949.24
  6. Step 6: Final answer
    x = 795.62

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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.