Home / 1,642.12-2,265.09-1,053.04

Finding the Fourth Proportional to 1,642.12, 2,265.09 and 1,053.04

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Solution

The fourth proportional to 1,642.12, 2,265.09 and 1,053.04 is: 1,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.12 : 2,265.09 = 1,053.04 : x
  2. Step 2: Convert to fraction form
    1,642.12/2,265.09 = 1,053.04/x
  3. Step 3: Cross multiply
    1,642.12x = 2,265.09 × 1,053.04
  4. Step 4: Simplify right side
    1,642.12x = 2,385,230.37
  5. Step 5: Solve for x
    x = 2,385,230.37/1,642.12
  6. Step 6: Final answer
    x = 1,452.53

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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.