Home / 6,242.88-8,617.41-5,355.12

Finding the Fourth Proportional to 6,242.88, 8,617.41 and 5,355.12

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Solution

The fourth proportional to 6,242.88, 8,617.41 and 5,355.12 is: 7,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,242.88 : 8,617.41 = 5,355.12 : x
  2. Step 2: Convert to fraction form
    6,242.88/8,617.41 = 5,355.12/x
  3. Step 3: Cross multiply
    6,242.88x = 8,617.41 × 5,355.12
  4. Step 4: Simplify right side
    6,242.88x = 46,147,264.64
  5. Step 5: Solve for x
    x = 46,147,264.64/6,242.88
  6. Step 6: Final answer
    x = 7,391.98

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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.