Home / 2,251.00-3,106.55-1,242.90

Finding the Fourth Proportional to 2,251.00, 3,106.55 and 1,242.90

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Solution

The fourth proportional to 2,251.00, 3,106.55 and 1,242.90 is: 1,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.00 : 3,106.55 = 1,242.90 : x
  2. Step 2: Convert to fraction form
    2,251.00/3,106.55 = 1,242.90/x
  3. Step 3: Cross multiply
    2,251.00x = 3,106.55 × 1,242.90
  4. Step 4: Simplify right side
    2,251.00x = 3,861,145.46
  5. Step 5: Solve for x
    x = 3,861,145.46/2,251.00
  6. Step 6: Final answer
    x = 1,715.30

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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.