Home / 1,729.47-2,387.36-1,169.67

Finding the Fourth Proportional to 1,729.47, 2,387.36 and 1,169.67

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Solution

The fourth proportional to 1,729.47, 2,387.36 and 1,169.67 is: 1,614.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.47 : 2,387.36 = 1,169.67 : x
  2. Step 2: Convert to fraction form
    1,729.47/2,387.36 = 1,169.67/x
  3. Step 3: Cross multiply
    1,729.47x = 2,387.36 × 1,169.67
  4. Step 4: Simplify right side
    1,729.47x = 2,792,417.52
  5. Step 5: Solve for x
    x = 2,792,417.52/1,729.47
  6. Step 6: Final answer
    x = 1,614.61

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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.