Home / 1,540.50-2,124.68-1,363.65

Finding the Fourth Proportional to 1,540.50, 2,124.68 and 1,363.65

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Solution

The fourth proportional to 1,540.50, 2,124.68 and 1,363.65 is: 1,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.50 : 2,124.68 = 1,363.65 : x
  2. Step 2: Convert to fraction form
    1,540.50/2,124.68 = 1,363.65/x
  3. Step 3: Cross multiply
    1,540.50x = 2,124.68 × 1,363.65
  4. Step 4: Simplify right side
    1,540.50x = 2,897,319.88
  5. Step 5: Solve for x
    x = 2,897,319.88/1,540.50
  6. Step 6: Final answer
    x = 1,880.77

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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.