Home / 4,247.21-6,371.10-1,127.17

Finding the Fourth Proportional to 4,247.21, 6,371.10 and 1,127.17

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Solution

The fourth proportional to 4,247.21, 6,371.10 and 1,127.17 is: 1,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.21 : 6,371.10 = 1,127.17 : x
  2. Step 2: Convert to fraction form
    4,247.21/6,371.10 = 1,127.17/x
  3. Step 3: Cross multiply
    4,247.21x = 6,371.10 × 1,127.17
  4. Step 4: Simplify right side
    4,247.21x = 7,181,312.79
  5. Step 5: Solve for x
    x = 7,181,312.79/4,247.21
  6. Step 6: Final answer
    x = 1,690.83

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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.