Home / 3,139.73-4,332.91-1,723.48

Finding the Fourth Proportional to 3,139.73, 4,332.91 and 1,723.48

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Solution

The fourth proportional to 3,139.73, 4,332.91 and 1,723.48 is: 2,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.73 : 4,332.91 = 1,723.48 : x
  2. Step 2: Convert to fraction form
    3,139.73/4,332.91 = 1,723.48/x
  3. Step 3: Cross multiply
    3,139.73x = 4,332.91 × 1,723.48
  4. Step 4: Simplify right side
    3,139.73x = 7,467,683.73
  5. Step 5: Solve for x
    x = 7,467,683.73/3,139.73
  6. Step 6: Final answer
    x = 2,378.45

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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.