Home / 2,909.29-4,013.80-1,730.20

Finding the Fourth Proportional to 2,909.29, 4,013.80 and 1,730.20

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Solution

The fourth proportional to 2,909.29, 4,013.80 and 1,730.20 is: 2,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.29 : 4,013.80 = 1,730.20 : x
  2. Step 2: Convert to fraction form
    2,909.29/4,013.80 = 1,730.20/x
  3. Step 3: Cross multiply
    2,909.29x = 4,013.80 × 1,730.20
  4. Step 4: Simplify right side
    2,909.29x = 6,944,676.76
  5. Step 5: Solve for x
    x = 6,944,676.76/2,909.29
  6. Step 6: Final answer
    x = 2,387.07

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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.