Home / 1,488.12-2,230.26-1,314.12

Finding the Fourth Proportional to 1,488.12, 2,230.26 and 1,314.12

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Solution

The fourth proportional to 1,488.12, 2,230.26 and 1,314.12 is: 1,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.12 : 2,230.26 = 1,314.12 : x
  2. Step 2: Convert to fraction form
    1,488.12/2,230.26 = 1,314.12/x
  3. Step 3: Cross multiply
    1,488.12x = 2,230.26 × 1,314.12
  4. Step 4: Simplify right side
    1,488.12x = 2,930,829.27
  5. Step 5: Solve for x
    x = 2,930,829.27/1,488.12
  6. Step 6: Final answer
    x = 1,969.48

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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.