Home / 3,127.28-4,690.90-1,046.90

Finding the Fourth Proportional to 3,127.28, 4,690.90 and 1,046.90

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Solution

The fourth proportional to 3,127.28, 4,690.90 and 1,046.90 is: 1,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.28 : 4,690.90 = 1,046.90 : x
  2. Step 2: Convert to fraction form
    3,127.28/4,690.90 = 1,046.90/x
  3. Step 3: Cross multiply
    3,127.28x = 4,690.90 × 1,046.90
  4. Step 4: Simplify right side
    3,127.28x = 4,910,903.21
  5. Step 5: Solve for x
    x = 4,910,903.21/3,127.28
  6. Step 6: Final answer
    x = 1,570.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.