Home / 7,877.86-11,819.52-3,498.39

Finding the Fourth Proportional to 7,877.86, 11,819.52 and 3,498.39

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Solution

The fourth proportional to 7,877.86, 11,819.52 and 3,498.39 is: 5,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.86 : 11,819.52 = 3,498.39 : x
  2. Step 2: Convert to fraction form
    7,877.86/11,819.52 = 3,498.39/x
  3. Step 3: Cross multiply
    7,877.86x = 11,819.52 × 3,498.39
  4. Step 4: Simplify right side
    7,877.86x = 41,349,290.57
  5. Step 5: Solve for x
    x = 41,349,290.57/7,877.86
  6. Step 6: Final answer
    x = 5,248.80

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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.