Home / 7,781.44-10,739.28-4,332.37

Finding the Fourth Proportional to 7,781.44, 10,739.28 and 4,332.37

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Solution

The fourth proportional to 7,781.44, 10,739.28 and 4,332.37 is: 5,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.44 : 10,739.28 = 4,332.37 : x
  2. Step 2: Convert to fraction form
    7,781.44/10,739.28 = 4,332.37/x
  3. Step 3: Cross multiply
    7,781.44x = 10,739.28 × 4,332.37
  4. Step 4: Simplify right side
    7,781.44x = 46,526,480.80
  5. Step 5: Solve for x
    x = 46,526,480.80/7,781.44
  6. Step 6: Final answer
    x = 5,979.16

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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.