Home / 2,591.85-3,888.93-1,358.97

Finding the Fourth Proportional to 2,591.85, 3,888.93 and 1,358.97

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Solution

The fourth proportional to 2,591.85, 3,888.93 and 1,358.97 is: 2,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.85 : 3,888.93 = 1,358.97 : x
  2. Step 2: Convert to fraction form
    2,591.85/3,888.93 = 1,358.97/x
  3. Step 3: Cross multiply
    2,591.85x = 3,888.93 × 1,358.97
  4. Step 4: Simplify right side
    2,591.85x = 5,284,939.20
  5. Step 5: Solve for x
    x = 5,284,939.20/2,591.85
  6. Step 6: Final answer
    x = 2,039.06

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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.