Home / 2,486.99-3,432.05-1,367.90

Finding the Fourth Proportional to 2,486.99, 3,432.05 and 1,367.90

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Solution

The fourth proportional to 2,486.99, 3,432.05 and 1,367.90 is: 1,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.99 : 3,432.05 = 1,367.90 : x
  2. Step 2: Convert to fraction form
    2,486.99/3,432.05 = 1,367.90/x
  3. Step 3: Cross multiply
    2,486.99x = 3,432.05 × 1,367.90
  4. Step 4: Simplify right side
    2,486.99x = 4,694,701.20
  5. Step 5: Solve for x
    x = 4,694,701.20/2,486.99
  6. Step 6: Final answer
    x = 1,887.70

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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.