Home / 2,620.65-3,928.10-1,060.19

Finding the Fourth Proportional to 2,620.65, 3,928.10 and 1,060.19

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Solution

The fourth proportional to 2,620.65, 3,928.10 and 1,060.19 is: 1,589.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.65 : 3,928.10 = 1,060.19 : x
  2. Step 2: Convert to fraction form
    2,620.65/3,928.10 = 1,060.19/x
  3. Step 3: Cross multiply
    2,620.65x = 3,928.10 × 1,060.19
  4. Step 4: Simplify right side
    2,620.65x = 4,164,522.13
  5. Step 5: Solve for x
    x = 4,164,522.13/2,620.65
  6. Step 6: Final answer
    x = 1,589.12

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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.