Home / 2,957.05-4,080.72-1,630.90

Finding the Fourth Proportional to 2,957.05, 4,080.72 and 1,630.90

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Solution

The fourth proportional to 2,957.05, 4,080.72 and 1,630.90 is: 2,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.05 : 4,080.72 = 1,630.90 : x
  2. Step 2: Convert to fraction form
    2,957.05/4,080.72 = 1,630.90/x
  3. Step 3: Cross multiply
    2,957.05x = 4,080.72 × 1,630.90
  4. Step 4: Simplify right side
    2,957.05x = 6,655,246.25
  5. Step 5: Solve for x
    x = 6,655,246.25/2,957.05
  6. Step 6: Final answer
    x = 2,250.64

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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.