Home / 1,519.75-2,098.20-1,071.37

Finding the Fourth Proportional to 1,519.75, 2,098.20 and 1,071.37

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Solution

The fourth proportional to 1,519.75, 2,098.20 and 1,071.37 is: 1,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.75 : 2,098.20 = 1,071.37 : x
  2. Step 2: Convert to fraction form
    1,519.75/2,098.20 = 1,071.37/x
  3. Step 3: Cross multiply
    1,519.75x = 2,098.20 × 1,071.37
  4. Step 4: Simplify right side
    1,519.75x = 2,247,948.53
  5. Step 5: Solve for x
    x = 2,247,948.53/1,519.75
  6. Step 6: Final answer
    x = 1,479.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.