Home / 6,426.12-9,625.51-3,790.78

Finding the Fourth Proportional to 6,426.12, 9,625.51 and 3,790.78

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Solution

The fourth proportional to 6,426.12, 9,625.51 and 3,790.78 is: 5,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.12 : 9,625.51 = 3,790.78 : x
  2. Step 2: Convert to fraction form
    6,426.12/9,625.51 = 3,790.78/x
  3. Step 3: Cross multiply
    6,426.12x = 9,625.51 × 3,790.78
  4. Step 4: Simplify right side
    6,426.12x = 36,488,204.29
  5. Step 5: Solve for x
    x = 36,488,204.29/6,426.12
  6. Step 6: Final answer
    x = 5,678.11

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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.