Home / 1,362.12-2,046.87-1,143.72

Finding the Fourth Proportional to 1,362.12, 2,046.87 and 1,143.72

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Solution

The fourth proportional to 1,362.12, 2,046.87 and 1,143.72 is: 1,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.12 : 2,046.87 = 1,143.72 : x
  2. Step 2: Convert to fraction form
    1,362.12/2,046.87 = 1,143.72/x
  3. Step 3: Cross multiply
    1,362.12x = 2,046.87 × 1,143.72
  4. Step 4: Simplify right side
    1,362.12x = 2,341,046.16
  5. Step 5: Solve for x
    x = 2,341,046.16/1,362.12
  6. Step 6: Final answer
    x = 1,718.68

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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.