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Finding the Fourth Proportional to 926.22, 1,277.52 and 533.10

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Solution

The fourth proportional to 926.22, 1,277.52 and 533.10 is: 735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.22 : 1,277.52 = 533.10 : x
  2. Step 2: Convert to fraction form
    926.22/1,277.52 = 533.10/x
  3. Step 3: Cross multiply
    926.22x = 1,277.52 × 533.10
  4. Step 4: Simplify right side
    926.22x = 681,045.91
  5. Step 5: Solve for x
    x = 681,045.91/926.22
  6. Step 6: Final answer
    x = 735.30

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Half scale
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Double scale
Find fourth proportional to 927.22, 1,278.90 and 534.10
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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.