Home / 3,171.90-4,752.45-2,621.10

Finding the Fourth Proportional to 3,171.90, 4,752.45 and 2,621.10

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Solution

The fourth proportional to 3,171.90, 4,752.45 and 2,621.10 is: 3,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.90 : 4,752.45 = 2,621.10 : x
  2. Step 2: Convert to fraction form
    3,171.90/4,752.45 = 2,621.10/x
  3. Step 3: Cross multiply
    3,171.90x = 4,752.45 × 2,621.10
  4. Step 4: Simplify right side
    3,171.90x = 12,456,646.70
  5. Step 5: Solve for x
    x = 12,456,646.70/3,171.90
  6. Step 6: Final answer
    x = 3,927.19

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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.