Home / 6,371.20-8,794.72-5,706.88

Finding the Fourth Proportional to 6,371.20, 8,794.72 and 5,706.88

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Solution

The fourth proportional to 6,371.20, 8,794.72 and 5,706.88 is: 7,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.20 : 8,794.72 = 5,706.88 : x
  2. Step 2: Convert to fraction form
    6,371.20/8,794.72 = 5,706.88/x
  3. Step 3: Cross multiply
    6,371.20x = 8,794.72 × 5,706.88
  4. Step 4: Simplify right side
    6,371.20x = 50,190,411.67
  5. Step 5: Solve for x
    x = 50,190,411.67/6,371.20
  6. Step 6: Final answer
    x = 7,877.70

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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.