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Finding the Fourth Proportional to 1,957.20, 2,959.02 and 1,957.20

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Solution

The fourth proportional to 1,957.20, 2,959.02 and 1,957.20 is: 2,959.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.20 : 2,959.02 = 1,957.20 : x
  2. Step 2: Convert to fraction form
    1,957.20/2,959.02 = 1,957.20/x
  3. Step 3: Cross multiply
    1,957.20x = 2,959.02 × 1,957.20
  4. Step 4: Simplify right side
    1,957.20x = 5,791,393.94
  5. Step 5: Solve for x
    x = 5,791,393.94/1,957.20
  6. Step 6: Final answer
    x = 2,959.02

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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.