Home / 4,247.30-6,371.13-1,325.72

Finding the Fourth Proportional to 4,247.30, 6,371.13 and 1,325.72

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Solution

The fourth proportional to 4,247.30, 6,371.13 and 1,325.72 is: 1,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.30 : 6,371.13 = 1,325.72 : x
  2. Step 2: Convert to fraction form
    4,247.30/6,371.13 = 1,325.72/x
  3. Step 3: Cross multiply
    4,247.30x = 6,371.13 × 1,325.72
  4. Step 4: Simplify right side
    4,247.30x = 8,446,334.46
  5. Step 5: Solve for x
    x = 8,446,334.46/4,247.30
  6. Step 6: Final answer
    x = 1,988.64

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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.