Home / 4,140.32-5,711.72-2,460.78

Finding the Fourth Proportional to 4,140.32, 5,711.72 and 2,460.78

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Solution

The fourth proportional to 4,140.32, 5,711.72 and 2,460.78 is: 3,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.32 : 5,711.72 = 2,460.78 : x
  2. Step 2: Convert to fraction form
    4,140.32/5,711.72 = 2,460.78/x
  3. Step 3: Cross multiply
    4,140.32x = 5,711.72 × 2,460.78
  4. Step 4: Simplify right side
    4,140.32x = 14,055,274.04
  5. Step 5: Solve for x
    x = 14,055,274.04/4,140.32
  6. Step 6: Final answer
    x = 3,394.74

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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.