Home / 2,039.96-2,815.10-1,155.74

Finding the Fourth Proportional to 2,039.96, 2,815.10 and 1,155.74

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Solution

The fourth proportional to 2,039.96, 2,815.10 and 1,155.74 is: 1,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.96 : 2,815.10 = 1,155.74 : x
  2. Step 2: Convert to fraction form
    2,039.96/2,815.10 = 1,155.74/x
  3. Step 3: Cross multiply
    2,039.96x = 2,815.10 × 1,155.74
  4. Step 4: Simplify right side
    2,039.96x = 3,253,523.67
  5. Step 5: Solve for x
    x = 3,253,523.67/2,039.96
  6. Step 6: Final answer
    x = 1,594.90

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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.