Home / 7,869.19-11,800.79-2,602.62

Finding the Fourth Proportional to 7,869.19, 11,800.79 and 2,602.62

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Solution

The fourth proportional to 7,869.19, 11,800.79 and 2,602.62 is: 3,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.19 : 11,800.79 = 2,602.62 : x
  2. Step 2: Convert to fraction form
    7,869.19/11,800.79 = 2,602.62/x
  3. Step 3: Cross multiply
    7,869.19x = 11,800.79 × 2,602.62
  4. Step 4: Simplify right side
    7,869.19x = 30,712,972.07
  5. Step 5: Solve for x
    x = 30,712,972.07/7,869.19
  6. Step 6: Final answer
    x = 3,902.94

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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.