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Finding the Fourth Proportional to 3,449.66, 4,760.20 and 1,957.30

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Solution

The fourth proportional to 3,449.66, 4,760.20 and 1,957.30 is: 2,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.66 : 4,760.20 = 1,957.30 : x
  2. Step 2: Convert to fraction form
    3,449.66/4,760.20 = 1,957.30/x
  3. Step 3: Cross multiply
    3,449.66x = 4,760.20 × 1,957.30
  4. Step 4: Simplify right side
    3,449.66x = 9,317,130.01
  5. Step 5: Solve for x
    x = 9,317,130.01/3,449.66
  6. Step 6: Final answer
    x = 2,700.89

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1.5x scale

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.