Home / 2,079.96-3,120.74-1,487.65

Finding the Fourth Proportional to 2,079.96, 3,120.74 and 1,487.65

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Solution

The fourth proportional to 2,079.96, 3,120.74 and 1,487.65 is: 2,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.96 : 3,120.74 = 1,487.65 : x
  2. Step 2: Convert to fraction form
    2,079.96/3,120.74 = 1,487.65/x
  3. Step 3: Cross multiply
    2,079.96x = 3,120.74 × 1,487.65
  4. Step 4: Simplify right side
    2,079.96x = 4,642,564.78
  5. Step 5: Solve for x
    x = 4,642,564.78/2,079.96
  6. Step 6: Final answer
    x = 2,232.05

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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.