Home / 2,719.93-4,079.24-1,257.69

Finding the Fourth Proportional to 2,719.93, 4,079.24 and 1,257.69

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Solution

The fourth proportional to 2,719.93, 4,079.24 and 1,257.69 is: 1,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.93 : 4,079.24 = 1,257.69 : x
  2. Step 2: Convert to fraction form
    2,719.93/4,079.24 = 1,257.69/x
  3. Step 3: Cross multiply
    2,719.93x = 4,079.24 × 1,257.69
  4. Step 4: Simplify right side
    2,719.93x = 5,130,392.67
  5. Step 5: Solve for x
    x = 5,130,392.67/2,719.93
  6. Step 6: Final answer
    x = 1,886.22

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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.