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Finding the Fourth Proportional to 969.52, 1,460.75 and 877.08

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Solution

The fourth proportional to 969.52, 1,460.75 and 877.08 is: 1,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.52 : 1,460.75 = 877.08 : x
  2. Step 2: Convert to fraction form
    969.52/1,460.75 = 877.08/x
  3. Step 3: Cross multiply
    969.52x = 1,460.75 × 877.08
  4. Step 4: Simplify right side
    969.52x = 1,281,194.61
  5. Step 5: Solve for x
    x = 1,281,194.61/969.52
  6. Step 6: Final answer
    x = 1,321.47

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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.