Home / 7,877.96-11,819.01-2,947.69

Finding the Fourth Proportional to 7,877.96, 11,819.01 and 2,947.69

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Solution

The fourth proportional to 7,877.96, 11,819.01 and 2,947.69 is: 4,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.96 : 11,819.01 = 2,947.69 : x
  2. Step 2: Convert to fraction form
    7,877.96/11,819.01 = 2,947.69/x
  3. Step 3: Cross multiply
    7,877.96x = 11,819.01 × 2,947.69
  4. Step 4: Simplify right side
    7,877.96x = 34,838,803.41
  5. Step 5: Solve for x
    x = 34,838,803.41/7,877.96
  6. Step 6: Final answer
    x = 4,422.31

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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.