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Finding the Fourth Proportional to 2,951.78, 4,054.62 and 2,937.20

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Solution

The fourth proportional to 2,951.78, 4,054.62 and 2,937.20 is: 4,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.78 : 4,054.62 = 2,937.20 : x
  2. Step 2: Convert to fraction form
    2,951.78/4,054.62 = 2,937.20/x
  3. Step 3: Cross multiply
    2,951.78x = 4,054.62 × 2,937.20
  4. Step 4: Simplify right side
    2,951.78x = 11,909,220.61
  5. Step 5: Solve for x
    x = 11,909,220.61/2,951.78
  6. Step 6: Final answer
    x = 4,034.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.