Home / 1,453.30-2,176.90-1,143.69

Finding the Fourth Proportional to 1,453.30, 2,176.90 and 1,143.69

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Solution

The fourth proportional to 1,453.30, 2,176.90 and 1,143.69 is: 1,713.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.30 : 2,176.90 = 1,143.69 : x
  2. Step 2: Convert to fraction form
    1,453.30/2,176.90 = 1,143.69/x
  3. Step 3: Cross multiply
    1,453.30x = 2,176.90 × 1,143.69
  4. Step 4: Simplify right side
    1,453.30x = 2,489,698.76
  5. Step 5: Solve for x
    x = 2,489,698.76/1,453.30
  6. Step 6: Final answer
    x = 1,713.13

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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.