Home / 3,540.78-4,877.84-2,476.56

Finding the Fourth Proportional to 3,540.78, 4,877.84 and 2,476.56

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Solution

The fourth proportional to 3,540.78, 4,877.84 and 2,476.56 is: 3,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.78 : 4,877.84 = 2,476.56 : x
  2. Step 2: Convert to fraction form
    3,540.78/4,877.84 = 2,476.56/x
  3. Step 3: Cross multiply
    3,540.78x = 4,877.84 × 2,476.56
  4. Step 4: Simplify right side
    3,540.78x = 12,080,263.43
  5. Step 5: Solve for x
    x = 12,080,263.43/3,540.78
  6. Step 6: Final answer
    x = 3,411.75

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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.