Home / 3,139.44-4,332.96-2,392.16

Finding the Fourth Proportional to 3,139.44, 4,332.96 and 2,392.16

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Solution

The fourth proportional to 3,139.44, 4,332.96 and 2,392.16 is: 3,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.44 : 4,332.96 = 2,392.16 : x
  2. Step 2: Convert to fraction form
    3,139.44/4,332.96 = 2,392.16/x
  3. Step 3: Cross multiply
    3,139.44x = 4,332.96 × 2,392.16
  4. Step 4: Simplify right side
    3,139.44x = 10,365,133.59
  5. Step 5: Solve for x
    x = 10,365,133.59/3,139.44
  6. Step 6: Final answer
    x = 3,301.59

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1.5x scale

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.