Home / 3,519.71-5,281.40-2,553.78

Finding the Fourth Proportional to 3,519.71, 5,281.40 and 2,553.78

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Solution

The fourth proportional to 3,519.71, 5,281.40 and 2,553.78 is: 3,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.71 : 5,281.40 = 2,553.78 : x
  2. Step 2: Convert to fraction form
    3,519.71/5,281.40 = 2,553.78/x
  3. Step 3: Cross multiply
    3,519.71x = 5,281.40 × 2,553.78
  4. Step 4: Simplify right side
    3,519.71x = 13,487,533.69
  5. Step 5: Solve for x
    x = 13,487,533.69/3,519.71
  6. Step 6: Final answer
    x = 3,832.00

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1.5x scale

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.