Home / 3,916.62-5,403.84-2,520.18

Finding the Fourth Proportional to 3,916.62, 5,403.84 and 2,520.18

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Solution

The fourth proportional to 3,916.62, 5,403.84 and 2,520.18 is: 3,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.62 : 5,403.84 = 2,520.18 : x
  2. Step 2: Convert to fraction form
    3,916.62/5,403.84 = 2,520.18/x
  3. Step 3: Cross multiply
    3,916.62x = 5,403.84 × 2,520.18
  4. Step 4: Simplify right side
    3,916.62x = 13,618,649.49
  5. Step 5: Solve for x
    x = 13,618,649.49/3,916.62
  6. Step 6: Final answer
    x = 3,477.14

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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.