Home / 2,612.99-3,919.68-1,132.31

Finding the Fourth Proportional to 2,612.99, 3,919.68 and 1,132.31

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Solution

The fourth proportional to 2,612.99, 3,919.68 and 1,132.31 is: 1,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.99 : 3,919.68 = 1,132.31 : x
  2. Step 2: Convert to fraction form
    2,612.99/3,919.68 = 1,132.31/x
  3. Step 3: Cross multiply
    2,612.99x = 3,919.68 × 1,132.31
  4. Step 4: Simplify right side
    2,612.99x = 4,438,273.26
  5. Step 5: Solve for x
    x = 4,438,273.26/2,612.99
  6. Step 6: Final answer
    x = 1,698.55

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1.5x scale

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.