Home / 3,872.48-5,341.32-2,545.76

Finding the Fourth Proportional to 3,872.48, 5,341.32 and 2,545.76

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Solution

The fourth proportional to 3,872.48, 5,341.32 and 2,545.76 is: 3,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.48 : 5,341.32 = 2,545.76 : x
  2. Step 2: Convert to fraction form
    3,872.48/5,341.32 = 2,545.76/x
  3. Step 3: Cross multiply
    3,872.48x = 5,341.32 × 2,545.76
  4. Step 4: Simplify right side
    3,872.48x = 13,597,718.80
  5. Step 5: Solve for x
    x = 13,597,718.80/3,872.48
  6. Step 6: Final answer
    x = 3,511.37

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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.