Home / 1,720.27-2,373.96-934.31

Finding the Fourth Proportional to 1,720.27, 2,373.96 and 934.31

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Solution

The fourth proportional to 1,720.27, 2,373.96 and 934.31 is: 1,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.27 : 2,373.96 = 934.31 : x
  2. Step 2: Convert to fraction form
    1,720.27/2,373.96 = 934.31/x
  3. Step 3: Cross multiply
    1,720.27x = 2,373.96 × 934.31
  4. Step 4: Simplify right side
    1,720.27x = 2,218,007.46
  5. Step 5: Solve for x
    x = 2,218,007.46/1,720.27
  6. Step 6: Final answer
    x = 1,289.34

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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.