Home / 3,139.31-4,707.65-1,164.33

Finding the Fourth Proportional to 3,139.31, 4,707.65 and 1,164.33

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Solution

The fourth proportional to 3,139.31, 4,707.65 and 1,164.33 is: 1,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.31 : 4,707.65 = 1,164.33 : x
  2. Step 2: Convert to fraction form
    3,139.31/4,707.65 = 1,164.33/x
  3. Step 3: Cross multiply
    3,139.31x = 4,707.65 × 1,164.33
  4. Step 4: Simplify right side
    3,139.31x = 5,481,252.30
  5. Step 5: Solve for x
    x = 5,481,252.30/3,139.31
  6. Step 6: Final answer
    x = 1,746.01

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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.