Home / 7,909.39-11,860.71-2,975.59

Finding the Fourth Proportional to 7,909.39, 11,860.71 and 2,975.59

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Solution

The fourth proportional to 7,909.39, 11,860.71 and 2,975.59 is: 4,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.39 : 11,860.71 = 2,975.59 : x
  2. Step 2: Convert to fraction form
    7,909.39/11,860.71 = 2,975.59/x
  3. Step 3: Cross multiply
    7,909.39x = 11,860.71 × 2,975.59
  4. Step 4: Simplify right side
    7,909.39x = 35,292,610.07
  5. Step 5: Solve for x
    x = 35,292,610.07/7,909.39
  6. Step 6: Final answer
    x = 4,462.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.