Home / 2,877.68-4,319.94-2,760.32

Finding the Fourth Proportional to 2,877.68, 4,319.94 and 2,760.32

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Solution

The fourth proportional to 2,877.68, 4,319.94 and 2,760.32 is: 4,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.68 : 4,319.94 = 2,760.32 : x
  2. Step 2: Convert to fraction form
    2,877.68/4,319.94 = 2,760.32/x
  3. Step 3: Cross multiply
    2,877.68x = 4,319.94 × 2,760.32
  4. Step 4: Simplify right side
    2,877.68x = 11,924,416.78
  5. Step 5: Solve for x
    x = 11,924,416.78/2,877.68
  6. Step 6: Final answer
    x = 4,143.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.