Home / 4,565.80-6,849.05-1,278.78

Finding the Fourth Proportional to 4,565.80, 6,849.05 and 1,278.78

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Solution

The fourth proportional to 4,565.80, 6,849.05 and 1,278.78 is: 1,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,565.80 : 6,849.05 = 1,278.78 : x
  2. Step 2: Convert to fraction form
    4,565.80/6,849.05 = 1,278.78/x
  3. Step 3: Cross multiply
    4,565.80x = 6,849.05 × 1,278.78
  4. Step 4: Simplify right side
    4,565.80x = 8,758,396.08
  5. Step 5: Solve for x
    x = 8,758,396.08/4,565.80
  6. Step 6: Final answer
    x = 1,918.26

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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.