Home / 2,909.70-4,015.08-1,730.61

Finding the Fourth Proportional to 2,909.70, 4,015.08 and 1,730.61

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Solution

The fourth proportional to 2,909.70, 4,015.08 and 1,730.61 is: 2,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.70 : 4,015.08 = 1,730.61 : x
  2. Step 2: Convert to fraction form
    2,909.70/4,015.08 = 1,730.61/x
  3. Step 3: Cross multiply
    2,909.70x = 4,015.08 × 1,730.61
  4. Step 4: Simplify right side
    2,909.70x = 6,948,537.60
  5. Step 5: Solve for x
    x = 6,948,537.60/2,909.70
  6. Step 6: Final answer
    x = 2,388.06

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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.