Home / 2,109.01-3,159.88-1,491.70

Finding the Fourth Proportional to 2,109.01, 3,159.88 and 1,491.70

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Solution

The fourth proportional to 2,109.01, 3,159.88 and 1,491.70 is: 2,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.01 : 3,159.88 = 1,491.70 : x
  2. Step 2: Convert to fraction form
    2,109.01/3,159.88 = 1,491.70/x
  3. Step 3: Cross multiply
    2,109.01x = 3,159.88 × 1,491.70
  4. Step 4: Simplify right side
    2,109.01x = 4,713,593.00
  5. Step 5: Solve for x
    x = 4,713,593.00/2,109.01
  6. Step 6: Final answer
    x = 2,234.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.