Home / 7,332.96-10,120.50-4,189.08

Finding the Fourth Proportional to 7,332.96, 10,120.50 and 4,189.08

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Solution

The fourth proportional to 7,332.96, 10,120.50 and 4,189.08 is: 5,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.96 : 10,120.50 = 4,189.08 : x
  2. Step 2: Convert to fraction form
    7,332.96/10,120.50 = 4,189.08/x
  3. Step 3: Cross multiply
    7,332.96x = 10,120.50 × 4,189.08
  4. Step 4: Simplify right side
    7,332.96x = 42,395,584.14
  5. Step 5: Solve for x
    x = 42,395,584.14/7,332.96
  6. Step 6: Final answer
    x = 5,781.51

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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.