Home / 4,138.65-6,211.87-1,508.70

Finding the Fourth Proportional to 4,138.65, 6,211.87 and 1,508.70

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Solution

The fourth proportional to 4,138.65, 6,211.87 and 1,508.70 is: 2,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.65 : 6,211.87 = 1,508.70 : x
  2. Step 2: Convert to fraction form
    4,138.65/6,211.87 = 1,508.70/x
  3. Step 3: Cross multiply
    4,138.65x = 6,211.87 × 1,508.70
  4. Step 4: Simplify right side
    4,138.65x = 9,371,829.69
  5. Step 5: Solve for x
    x = 9,371,829.69/4,138.65
  6. Step 6: Final answer
    x = 2,264.47

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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.