Home / 4,719.27-7,078.36-1,256.79

Finding the Fourth Proportional to 4,719.27, 7,078.36 and 1,256.79

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Solution

The fourth proportional to 4,719.27, 7,078.36 and 1,256.79 is: 1,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.27 : 7,078.36 = 1,256.79 : x
  2. Step 2: Convert to fraction form
    4,719.27/7,078.36 = 1,256.79/x
  3. Step 3: Cross multiply
    4,719.27x = 7,078.36 × 1,256.79
  4. Step 4: Simplify right side
    4,719.27x = 8,896,012.06
  5. Step 5: Solve for x
    x = 8,896,012.06/4,719.27
  6. Step 6: Final answer
    x = 1,885.04

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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.