Home / 7,817.74-11,722.82-2,889.70

Finding the Fourth Proportional to 7,817.74, 11,722.82 and 2,889.70

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Solution

The fourth proportional to 7,817.74, 11,722.82 and 2,889.70 is: 4,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.74 : 11,722.82 = 2,889.70 : x
  2. Step 2: Convert to fraction form
    7,817.74/11,722.82 = 2,889.70/x
  3. Step 3: Cross multiply
    7,817.74x = 11,722.82 × 2,889.70
  4. Step 4: Simplify right side
    7,817.74x = 33,875,432.95
  5. Step 5: Solve for x
    x = 33,875,432.95/7,817.74
  6. Step 6: Final answer
    x = 4,333.15

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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.