Home / 3,531.91-5,298.20-1,340.05

Finding the Fourth Proportional to 3,531.91, 5,298.20 and 1,340.05

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Solution

The fourth proportional to 3,531.91, 5,298.20 and 1,340.05 is: 2,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.91 : 5,298.20 = 1,340.05 : x
  2. Step 2: Convert to fraction form
    3,531.91/5,298.20 = 1,340.05/x
  3. Step 3: Cross multiply
    3,531.91x = 5,298.20 × 1,340.05
  4. Step 4: Simplify right side
    3,531.91x = 7,099,852.91
  5. Step 5: Solve for x
    x = 7,099,852.91/3,531.91
  6. Step 6: Final answer
    x = 2,010.20

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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.