Home / 7,909.25-11,854.69-2,975.74

Finding the Fourth Proportional to 7,909.25, 11,854.69 and 2,975.74

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Solution

The fourth proportional to 7,909.25, 11,854.69 and 2,975.74 is: 4,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.25 : 11,854.69 = 2,975.74 : x
  2. Step 2: Convert to fraction form
    7,909.25/11,854.69 = 2,975.74/x
  3. Step 3: Cross multiply
    7,909.25x = 11,854.69 × 2,975.74
  4. Step 4: Simplify right side
    7,909.25x = 35,276,438.14
  5. Step 5: Solve for x
    x = 35,276,438.14/7,909.25
  6. Step 6: Final answer
    x = 4,460.15

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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.