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Finding the Fourth Proportional to 951.51, 1,312.98 and 702.96

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Solution

The fourth proportional to 951.51, 1,312.98 and 702.96 is: 970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.51 : 1,312.98 = 702.96 : x
  2. Step 2: Convert to fraction form
    951.51/1,312.98 = 702.96/x
  3. Step 3: Cross multiply
    951.51x = 1,312.98 × 702.96
  4. Step 4: Simplify right side
    951.51x = 922,972.42
  5. Step 5: Solve for x
    x = 922,972.42/951.51
  6. Step 6: Final answer
    x = 970.01

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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.