Home / 2,003.90-2,765.36-1,164.65

Finding the Fourth Proportional to 2,003.90, 2,765.36 and 1,164.65

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Solution

The fourth proportional to 2,003.90, 2,765.36 and 1,164.65 is: 1,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.90 : 2,765.36 = 1,164.65 : x
  2. Step 2: Convert to fraction form
    2,003.90/2,765.36 = 1,164.65/x
  3. Step 3: Cross multiply
    2,003.90x = 2,765.36 × 1,164.65
  4. Step 4: Simplify right side
    2,003.90x = 3,220,656.87
  5. Step 5: Solve for x
    x = 3,220,656.87/2,003.90
  6. Step 6: Final answer
    x = 1,607.20

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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.