Home / 2,281.59-3,421.01-1,109.28

Finding the Fourth Proportional to 2,281.59, 3,421.01 and 1,109.28

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Solution

The fourth proportional to 2,281.59, 3,421.01 and 1,109.28 is: 1,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.59 : 3,421.01 = 1,109.28 : x
  2. Step 2: Convert to fraction form
    2,281.59/3,421.01 = 1,109.28/x
  3. Step 3: Cross multiply
    2,281.59x = 3,421.01 × 1,109.28
  4. Step 4: Simplify right side
    2,281.59x = 3,794,860.75
  5. Step 5: Solve for x
    x = 3,794,860.75/2,281.59
  6. Step 6: Final answer
    x = 1,663.25

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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.