Home / 6,247.71-8,621.85-3,453.21

Finding the Fourth Proportional to 6,247.71, 8,621.85 and 3,453.21

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Solution

The fourth proportional to 6,247.71, 8,621.85 and 3,453.21 is: 4,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.71 : 8,621.85 = 3,453.21 : x
  2. Step 2: Convert to fraction form
    6,247.71/8,621.85 = 3,453.21/x
  3. Step 3: Cross multiply
    6,247.71x = 8,621.85 × 3,453.21
  4. Step 4: Simplify right side
    6,247.71x = 29,773,058.64
  5. Step 5: Solve for x
    x = 29,773,058.64/6,247.71
  6. Step 6: Final answer
    x = 4,765.44

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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.