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Finding the Fourth Proportional to 948.82, 1,309.36 and 534.82

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Solution

The fourth proportional to 948.82, 1,309.36 and 534.82 is: 738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.82 : 1,309.36 = 534.82 : x
  2. Step 2: Convert to fraction form
    948.82/1,309.36 = 534.82/x
  3. Step 3: Cross multiply
    948.82x = 1,309.36 × 534.82
  4. Step 4: Simplify right side
    948.82x = 700,265.37
  5. Step 5: Solve for x
    x = 700,265.37/948.82
  6. Step 6: Final answer
    x = 738.04

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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.