Home / 2,161.33-3,242.99-1,065.10

Finding the Fourth Proportional to 2,161.33, 3,242.99 and 1,065.10

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Solution

The fourth proportional to 2,161.33, 3,242.99 and 1,065.10 is: 1,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.33 : 3,242.99 = 1,065.10 : x
  2. Step 2: Convert to fraction form
    2,161.33/3,242.99 = 1,065.10/x
  3. Step 3: Cross multiply
    2,161.33x = 3,242.99 × 1,065.10
  4. Step 4: Simplify right side
    2,161.33x = 3,454,103.29
  5. Step 5: Solve for x
    x = 3,454,103.29/2,161.33
  6. Step 6: Final answer
    x = 1,598.14

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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.