Home / 1,147.04-1,721.25-453.59

Finding the Fourth Proportional to 1,147.04, 1,721.25 and 453.59

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Solution

The fourth proportional to 1,147.04, 1,721.25 and 453.59 is: 680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.04 : 1,721.25 = 453.59 : x
  2. Step 2: Convert to fraction form
    1,147.04/1,721.25 = 453.59/x
  3. Step 3: Cross multiply
    1,147.04x = 1,721.25 × 453.59
  4. Step 4: Simplify right side
    1,147.04x = 780,733.18
  5. Step 5: Solve for x
    x = 780,733.18/1,147.04
  6. Step 6: Final answer
    x = 680.65

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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.