Home / 3,124.55-4,687.73-1,478.82

Finding the Fourth Proportional to 3,124.55, 4,687.73 and 1,478.82

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Solution

The fourth proportional to 3,124.55, 4,687.73 and 1,478.82 is: 2,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.55 : 4,687.73 = 1,478.82 : x
  2. Step 2: Convert to fraction form
    3,124.55/4,687.73 = 1,478.82/x
  3. Step 3: Cross multiply
    3,124.55x = 4,687.73 × 1,478.82
  4. Step 4: Simplify right side
    3,124.55x = 6,932,301.48
  5. Step 5: Solve for x
    x = 6,932,301.48/3,124.55
  6. Step 6: Final answer
    x = 2,218.66

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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.