Home / 3,145.18-4,340.37-1,748.02

Finding the Fourth Proportional to 3,145.18, 4,340.37 and 1,748.02

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Solution

The fourth proportional to 3,145.18, 4,340.37 and 1,748.02 is: 2,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.18 : 4,340.37 = 1,748.02 : x
  2. Step 2: Convert to fraction form
    3,145.18/4,340.37 = 1,748.02/x
  3. Step 3: Cross multiply
    3,145.18x = 4,340.37 × 1,748.02
  4. Step 4: Simplify right side
    3,145.18x = 7,587,053.57
  5. Step 5: Solve for x
    x = 7,587,053.57/3,145.18
  6. Step 6: Final answer
    x = 2,412.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.