Home / 2,872.88-4,288.66-2,435.60

Finding the Fourth Proportional to 2,872.88, 4,288.66 and 2,435.60

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Solution

The fourth proportional to 2,872.88, 4,288.66 and 2,435.60 is: 3,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.88 : 4,288.66 = 2,435.60 : x
  2. Step 2: Convert to fraction form
    2,872.88/4,288.66 = 2,435.60/x
  3. Step 3: Cross multiply
    2,872.88x = 4,288.66 × 2,435.60
  4. Step 4: Simplify right side
    2,872.88x = 10,445,460.30
  5. Step 5: Solve for x
    x = 10,445,460.30/2,872.88
  6. Step 6: Final answer
    x = 3,635.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.