Home / 2,929.22-4,040.96-1,686.50

Finding the Fourth Proportional to 2,929.22, 4,040.96 and 1,686.50

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Solution

The fourth proportional to 2,929.22, 4,040.96 and 1,686.50 is: 2,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.22 : 4,040.96 = 1,686.50 : x
  2. Step 2: Convert to fraction form
    2,929.22/4,040.96 = 1,686.50/x
  3. Step 3: Cross multiply
    2,929.22x = 4,040.96 × 1,686.50
  4. Step 4: Simplify right side
    2,929.22x = 6,815,079.04
  5. Step 5: Solve for x
    x = 6,815,079.04/2,929.22
  6. Step 6: Final answer
    x = 2,326.58

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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.