Home / 2,617.85-3,921.30-2,393.70

Finding the Fourth Proportional to 2,617.85, 3,921.30 and 2,393.70

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Solution

The fourth proportional to 2,617.85, 3,921.30 and 2,393.70 is: 3,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.85 : 3,921.30 = 2,393.70 : x
  2. Step 2: Convert to fraction form
    2,617.85/3,921.30 = 2,393.70/x
  3. Step 3: Cross multiply
    2,617.85x = 3,921.30 × 2,393.70
  4. Step 4: Simplify right side
    2,617.85x = 9,386,415.81
  5. Step 5: Solve for x
    x = 9,386,415.81/2,617.85
  6. Step 6: Final answer
    x = 3,585.55

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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.