Home / 2,162.25-3,240.64-1,381.95

Finding the Fourth Proportional to 2,162.25, 3,240.64 and 1,381.95

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Solution

The fourth proportional to 2,162.25, 3,240.64 and 1,381.95 is: 2,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.25 : 3,240.64 = 1,381.95 : x
  2. Step 2: Convert to fraction form
    2,162.25/3,240.64 = 1,381.95/x
  3. Step 3: Cross multiply
    2,162.25x = 3,240.64 × 1,381.95
  4. Step 4: Simplify right side
    2,162.25x = 4,478,402.45
  5. Step 5: Solve for x
    x = 4,478,402.45/2,162.25
  6. Step 6: Final answer
    x = 2,071.18

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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.