Home / 4,387.62-6,577.71-1,920.57

Finding the Fourth Proportional to 4,387.62, 6,577.71 and 1,920.57

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Solution

The fourth proportional to 4,387.62, 6,577.71 and 1,920.57 is: 2,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.62 : 6,577.71 = 1,920.57 : x
  2. Step 2: Convert to fraction form
    4,387.62/6,577.71 = 1,920.57/x
  3. Step 3: Cross multiply
    4,387.62x = 6,577.71 × 1,920.57
  4. Step 4: Simplify right side
    4,387.62x = 12,632,952.49
  5. Step 5: Solve for x
    x = 12,632,952.49/4,387.62
  6. Step 6: Final answer
    x = 2,879.23

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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.