Home / 7,272.71-10,909.05-2,078.58

Finding the Fourth Proportional to 7,272.71, 10,909.05 and 2,078.58

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Solution

The fourth proportional to 7,272.71, 10,909.05 and 2,078.58 is: 3,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.71 : 10,909.05 = 2,078.58 : x
  2. Step 2: Convert to fraction form
    7,272.71/10,909.05 = 2,078.58/x
  3. Step 3: Cross multiply
    7,272.71x = 10,909.05 × 2,078.58
  4. Step 4: Simplify right side
    7,272.71x = 22,675,333.15
  5. Step 5: Solve for x
    x = 22,675,333.15/7,272.71
  6. Step 6: Final answer
    x = 3,117.87

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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.