Home / 4,247.28-6,371.55-1,325.84

Finding the Fourth Proportional to 4,247.28, 6,371.55 and 1,325.84

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Solution

The fourth proportional to 4,247.28, 6,371.55 and 1,325.84 is: 1,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.28 : 6,371.55 = 1,325.84 : x
  2. Step 2: Convert to fraction form
    4,247.28/6,371.55 = 1,325.84/x
  3. Step 3: Cross multiply
    4,247.28x = 6,371.55 × 1,325.84
  4. Step 4: Simplify right side
    4,247.28x = 8,447,623.99
  5. Step 5: Solve for x
    x = 8,447,623.99/4,247.28
  6. Step 6: Final answer
    x = 1,988.95

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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.