Home / 4,719.70-7,079.56-1,256.95

Finding the Fourth Proportional to 4,719.70, 7,079.56 and 1,256.95

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Solution

The fourth proportional to 4,719.70, 7,079.56 and 1,256.95 is: 1,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.70 : 7,079.56 = 1,256.95 : x
  2. Step 2: Convert to fraction form
    4,719.70/7,079.56 = 1,256.95/x
  3. Step 3: Cross multiply
    4,719.70x = 7,079.56 × 1,256.95
  4. Step 4: Simplify right side
    4,719.70x = 8,898,632.10
  5. Step 5: Solve for x
    x = 8,898,632.10/4,719.70
  6. Step 6: Final answer
    x = 1,885.42

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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.