Home / 6,115.32-8,438.16-3,462.72

Finding the Fourth Proportional to 6,115.32, 8,438.16 and 3,462.72

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Solution

The fourth proportional to 6,115.32, 8,438.16 and 3,462.72 is: 4,778.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.32 : 8,438.16 = 3,462.72 : x
  2. Step 2: Convert to fraction form
    6,115.32/8,438.16 = 3,462.72/x
  3. Step 3: Cross multiply
    6,115.32x = 8,438.16 × 3,462.72
  4. Step 4: Simplify right side
    6,115.32x = 29,218,985.40
  5. Step 5: Solve for x
    x = 29,218,985.40/6,115.32
  6. Step 6: Final answer
    x = 4,778.00

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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.