Home / 4,877.12-6,731.68-3,012.96

Finding the Fourth Proportional to 4,877.12, 6,731.68 and 3,012.96

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Solution

The fourth proportional to 4,877.12, 6,731.68 and 3,012.96 is: 4,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.12 : 6,731.68 = 3,012.96 : x
  2. Step 2: Convert to fraction form
    4,877.12/6,731.68 = 3,012.96/x
  3. Step 3: Cross multiply
    4,877.12x = 6,731.68 × 3,012.96
  4. Step 4: Simplify right side
    4,877.12x = 20,282,282.57
  5. Step 5: Solve for x
    x = 20,282,282.57/4,877.12
  6. Step 6: Final answer
    x = 4,158.66

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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.