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Finding the Fourth Proportional to 1,951.50, 2,927.57 and 653.28

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Solution

The fourth proportional to 1,951.50, 2,927.57 and 653.28 is: 980.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.50 : 2,927.57 = 653.28 : x
  2. Step 2: Convert to fraction form
    1,951.50/2,927.57 = 653.28/x
  3. Step 3: Cross multiply
    1,951.50x = 2,927.57 × 653.28
  4. Step 4: Simplify right side
    1,951.50x = 1,912,522.93
  5. Step 5: Solve for x
    x = 1,912,522.93/1,951.50
  6. Step 6: Final answer
    x = 980.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.