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Finding the Fourth Proportional to 6,257.80, 9,375.90 and 4,065.40

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Solution

The fourth proportional to 6,257.80, 9,375.90 and 4,065.40 is: 6,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.80 : 9,375.90 = 4,065.40 : x
  2. Step 2: Convert to fraction form
    6,257.80/9,375.90 = 4,065.40/x
  3. Step 3: Cross multiply
    6,257.80x = 9,375.90 × 4,065.40
  4. Step 4: Simplify right side
    6,257.80x = 38,116,783.86
  5. Step 5: Solve for x
    x = 38,116,783.86/6,257.80
  6. Step 6: Final answer
    x = 6,091.08

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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.