Home / 2,132.00-2,942.18-1,247.63

Finding the Fourth Proportional to 2,132.00, 2,942.18 and 1,247.63

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Solution

The fourth proportional to 2,132.00, 2,942.18 and 1,247.63 is: 1,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.00 : 2,942.18 = 1,247.63 : x
  2. Step 2: Convert to fraction form
    2,132.00/2,942.18 = 1,247.63/x
  3. Step 3: Cross multiply
    2,132.00x = 2,942.18 × 1,247.63
  4. Step 4: Simplify right side
    2,132.00x = 3,670,731.08
  5. Step 5: Solve for x
    x = 3,670,731.08/2,132.00
  6. Step 6: Final answer
    x = 1,721.74

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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.