Home / 3,147.23-4,719.49-1,585.28

Finding the Fourth Proportional to 3,147.23, 4,719.49 and 1,585.28

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Solution

The fourth proportional to 3,147.23, 4,719.49 and 1,585.28 is: 2,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.23 : 4,719.49 = 1,585.28 : x
  2. Step 2: Convert to fraction form
    3,147.23/4,719.49 = 1,585.28/x
  3. Step 3: Cross multiply
    3,147.23x = 4,719.49 × 1,585.28
  4. Step 4: Simplify right side
    3,147.23x = 7,481,713.11
  5. Step 5: Solve for x
    x = 7,481,713.11/3,147.23
  6. Step 6: Final answer
    x = 2,377.24

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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.