Home / 2,247.35-3,101.40-1,252.87

Finding the Fourth Proportional to 2,247.35, 3,101.40 and 1,252.87

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Solution

The fourth proportional to 2,247.35, 3,101.40 and 1,252.87 is: 1,728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.35 : 3,101.40 = 1,252.87 : x
  2. Step 2: Convert to fraction form
    2,247.35/3,101.40 = 1,252.87/x
  3. Step 3: Cross multiply
    2,247.35x = 3,101.40 × 1,252.87
  4. Step 4: Simplify right side
    2,247.35x = 3,885,643.26
  5. Step 5: Solve for x
    x = 3,885,643.26/2,247.35
  6. Step 6: Final answer
    x = 1,728.99

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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.