Home / 4,247.71-6,371.44-1,127.72

Finding the Fourth Proportional to 4,247.71, 6,371.44 and 1,127.72

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Solution

The fourth proportional to 4,247.71, 6,371.44 and 1,127.72 is: 1,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.71 : 6,371.44 = 1,127.72 : x
  2. Step 2: Convert to fraction form
    4,247.71/6,371.44 = 1,127.72/x
  3. Step 3: Cross multiply
    4,247.71x = 6,371.44 × 1,127.72
  4. Step 4: Simplify right side
    4,247.71x = 7,185,200.32
  5. Step 5: Solve for x
    x = 7,185,200.32/4,247.71
  6. Step 6: Final answer
    x = 1,691.55

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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.