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Finding the Fourth Proportional to 975.38, 1,468.80 and 703.36

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Solution

The fourth proportional to 975.38, 1,468.80 and 703.36 is: 1,059.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.38 : 1,468.80 = 703.36 : x
  2. Step 2: Convert to fraction form
    975.38/1,468.80 = 703.36/x
  3. Step 3: Cross multiply
    975.38x = 1,468.80 × 703.36
  4. Step 4: Simplify right side
    975.38x = 1,033,084.31
  5. Step 5: Solve for x
    x = 1,033,084.31/975.38
  6. Step 6: Final answer
    x = 1,059.16

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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.