Home / 4,978.44-6,872.58-2,882.16

Finding the Fourth Proportional to 4,978.44, 6,872.58 and 2,882.16

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Solution

The fourth proportional to 4,978.44, 6,872.58 and 2,882.16 is: 3,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978.44 : 6,872.58 = 2,882.16 : x
  2. Step 2: Convert to fraction form
    4,978.44/6,872.58 = 2,882.16/x
  3. Step 3: Cross multiply
    4,978.44x = 6,872.58 × 2,882.16
  4. Step 4: Simplify right side
    4,978.44x = 19,807,875.17
  5. Step 5: Solve for x
    x = 19,807,875.17/4,978.44
  6. Step 6: Final answer
    x = 3,978.73

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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.