Home / 7,084.65-10,620.05-2,639.06

Finding the Fourth Proportional to 7,084.65, 10,620.05 and 2,639.06

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Solution

The fourth proportional to 7,084.65, 10,620.05 and 2,639.06 is: 3,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.65 : 10,620.05 = 2,639.06 : x
  2. Step 2: Convert to fraction form
    7,084.65/10,620.05 = 2,639.06/x
  3. Step 3: Cross multiply
    7,084.65x = 10,620.05 × 2,639.06
  4. Step 4: Simplify right side
    7,084.65x = 28,026,882.86
  5. Step 5: Solve for x
    x = 28,026,882.86/7,084.65
  6. Step 6: Final answer
    x = 3,956.00

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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.