Home / 2,957.31-4,080.96-1,630.80

Finding the Fourth Proportional to 2,957.31, 4,080.96 and 1,630.80

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Solution

The fourth proportional to 2,957.31, 4,080.96 and 1,630.80 is: 2,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.31 : 4,080.96 = 1,630.80 : x
  2. Step 2: Convert to fraction form
    2,957.31/4,080.96 = 1,630.80/x
  3. Step 3: Cross multiply
    2,957.31x = 4,080.96 × 1,630.80
  4. Step 4: Simplify right side
    2,957.31x = 6,655,229.57
  5. Step 5: Solve for x
    x = 6,655,229.57/2,957.31
  6. Step 6: Final answer
    x = 2,250.43

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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.