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Finding the Fourth Proportional to 753.44, 1,135.88 and 706.52

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Solution

The fourth proportional to 753.44, 1,135.88 and 706.52 is: 1,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.44 : 1,135.88 = 706.52 : x
  2. Step 2: Convert to fraction form
    753.44/1,135.88 = 706.52/x
  3. Step 3: Cross multiply
    753.44x = 1,135.88 × 706.52
  4. Step 4: Simplify right side
    753.44x = 802,521.94
  5. Step 5: Solve for x
    x = 802,521.94/753.44
  6. Step 6: Final answer
    x = 1,065.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.