Home / 3,149.28-4,723.93-1,415.88

Finding the Fourth Proportional to 3,149.28, 4,723.93 and 1,415.88

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Solution

The fourth proportional to 3,149.28, 4,723.93 and 1,415.88 is: 2,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.28 : 4,723.93 = 1,415.88 : x
  2. Step 2: Convert to fraction form
    3,149.28/4,723.93 = 1,415.88/x
  3. Step 3: Cross multiply
    3,149.28x = 4,723.93 × 1,415.88
  4. Step 4: Simplify right side
    3,149.28x = 6,688,518.01
  5. Step 5: Solve for x
    x = 6,688,518.01/3,149.28
  6. Step 6: Final answer
    x = 2,123.82

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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.