Home / 7,781.69-10,739.63-4,332.62

Finding the Fourth Proportional to 7,781.69, 10,739.63 and 4,332.62

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Solution

The fourth proportional to 7,781.69, 10,739.63 and 4,332.62 is: 5,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.69 : 10,739.63 = 4,332.62 : x
  2. Step 2: Convert to fraction form
    7,781.69/10,739.63 = 4,332.62/x
  3. Step 3: Cross multiply
    7,781.69x = 10,739.63 × 4,332.62
  4. Step 4: Simplify right side
    7,781.69x = 46,530,660.37
  5. Step 5: Solve for x
    x = 46,530,660.37/7,781.69
  6. Step 6: Final answer
    x = 5,979.51

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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.