Home / 2,932.43-4,047.47-1,989.79

Finding the Fourth Proportional to 2,932.43, 4,047.47 and 1,989.79

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Solution

The fourth proportional to 2,932.43, 4,047.47 and 1,989.79 is: 2,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.43 : 4,047.47 = 1,989.79 : x
  2. Step 2: Convert to fraction form
    2,932.43/4,047.47 = 1,989.79/x
  3. Step 3: Cross multiply
    2,932.43x = 4,047.47 × 1,989.79
  4. Step 4: Simplify right side
    2,932.43x = 8,053,614.11
  5. Step 5: Solve for x
    x = 8,053,614.11/2,932.43
  6. Step 6: Final answer
    x = 2,746.40

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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.