Home / 2,909.22-4,013.40-1,729.62

Finding the Fourth Proportional to 2,909.22, 4,013.40 and 1,729.62

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Solution

The fourth proportional to 2,909.22, 4,013.40 and 1,729.62 is: 2,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.22 : 4,013.40 = 1,729.62 : x
  2. Step 2: Convert to fraction form
    2,909.22/4,013.40 = 1,729.62/x
  3. Step 3: Cross multiply
    2,909.22x = 4,013.40 × 1,729.62
  4. Step 4: Simplify right side
    2,909.22x = 6,941,656.91
  5. Step 5: Solve for x
    x = 6,941,656.91/2,909.22
  6. Step 6: Final answer
    x = 2,386.09

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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.