Home / 3,124.59-4,311.22-1,866.05

Finding the Fourth Proportional to 3,124.59, 4,311.22 and 1,866.05

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Solution

The fourth proportional to 3,124.59, 4,311.22 and 1,866.05 is: 2,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.59 : 4,311.22 = 1,866.05 : x
  2. Step 2: Convert to fraction form
    3,124.59/4,311.22 = 1,866.05/x
  3. Step 3: Cross multiply
    3,124.59x = 4,311.22 × 1,866.05
  4. Step 4: Simplify right side
    3,124.59x = 8,044,942.75
  5. Step 5: Solve for x
    x = 8,044,942.75/3,124.59
  6. Step 6: Final answer
    x = 2,574.72

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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.