Home / 2,839.24-3,917.96-1,580.20

Finding the Fourth Proportional to 2,839.24, 3,917.96 and 1,580.20

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Solution

The fourth proportional to 2,839.24, 3,917.96 and 1,580.20 is: 2,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.24 : 3,917.96 = 1,580.20 : x
  2. Step 2: Convert to fraction form
    2,839.24/3,917.96 = 1,580.20/x
  3. Step 3: Cross multiply
    2,839.24x = 3,917.96 × 1,580.20
  4. Step 4: Simplify right side
    2,839.24x = 6,191,160.39
  5. Step 5: Solve for x
    x = 6,191,160.39/2,839.24
  6. Step 6: Final answer
    x = 2,180.57

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1.5x scale

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.