Home / 2,015.08-2,778.24-1,350.88

Finding the Fourth Proportional to 2,015.08, 2,778.24 and 1,350.88

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Solution

The fourth proportional to 2,015.08, 2,778.24 and 1,350.88 is: 1,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.08 : 2,778.24 = 1,350.88 : x
  2. Step 2: Convert to fraction form
    2,015.08/2,778.24 = 1,350.88/x
  3. Step 3: Cross multiply
    2,015.08x = 2,778.24 × 1,350.88
  4. Step 4: Simplify right side
    2,015.08x = 3,753,068.85
  5. Step 5: Solve for x
    x = 3,753,068.85/2,015.08
  6. Step 6: Final answer
    x = 1,862.49

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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.