Home / 3,949.02-5,447.68-2,354.55

Finding the Fourth Proportional to 3,949.02, 5,447.68 and 2,354.55

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Solution

The fourth proportional to 3,949.02, 5,447.68 and 2,354.55 is: 3,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.02 : 5,447.68 = 2,354.55 : x
  2. Step 2: Convert to fraction form
    3,949.02/5,447.68 = 2,354.55/x
  3. Step 3: Cross multiply
    3,949.02x = 5,447.68 × 2,354.55
  4. Step 4: Simplify right side
    3,949.02x = 12,826,807.71
  5. Step 5: Solve for x
    x = 12,826,807.71/3,949.02
  6. Step 6: Final answer
    x = 3,248.10

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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.