Home / 3,292.50-4,545.72-2,115.63

Finding the Fourth Proportional to 3,292.50, 4,545.72 and 2,115.63

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Solution

The fourth proportional to 3,292.50, 4,545.72 and 2,115.63 is: 2,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.50 : 4,545.72 = 2,115.63 : x
  2. Step 2: Convert to fraction form
    3,292.50/4,545.72 = 2,115.63/x
  3. Step 3: Cross multiply
    3,292.50x = 4,545.72 × 2,115.63
  4. Step 4: Simplify right side
    3,292.50x = 9,617,061.60
  5. Step 5: Solve for x
    x = 9,617,061.60/3,292.50
  6. Step 6: Final answer
    x = 2,920.90

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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.