Home / 3,724.12-5,140.89-2,465.78

Finding the Fourth Proportional to 3,724.12, 5,140.89 and 2,465.78

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Solution

The fourth proportional to 3,724.12, 5,140.89 and 2,465.78 is: 3,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.12 : 5,140.89 = 2,465.78 : x
  2. Step 2: Convert to fraction form
    3,724.12/5,140.89 = 2,465.78/x
  3. Step 3: Cross multiply
    3,724.12x = 5,140.89 × 2,465.78
  4. Step 4: Simplify right side
    3,724.12x = 12,676,316.60
  5. Step 5: Solve for x
    x = 12,676,316.60/3,724.12
  6. Step 6: Final answer
    x = 3,403.84

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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.