Home / 2,240.86-3,340.15-2,065.90

Finding the Fourth Proportional to 2,240.86, 3,340.15 and 2,065.90

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Solution

The fourth proportional to 2,240.86, 3,340.15 and 2,065.90 is: 3,079.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.86 : 3,340.15 = 2,065.90 : x
  2. Step 2: Convert to fraction form
    2,240.86/3,340.15 = 2,065.90/x
  3. Step 3: Cross multiply
    2,240.86x = 3,340.15 × 2,065.90
  4. Step 4: Simplify right side
    2,240.86x = 6,900,415.89
  5. Step 5: Solve for x
    x = 6,900,415.89/2,240.86
  6. Step 6: Final answer
    x = 3,079.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.