Home / 3,148.08-4,343.36-1,821.30

Finding the Fourth Proportional to 3,148.08, 4,343.36 and 1,821.30

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Solution

The fourth proportional to 3,148.08, 4,343.36 and 1,821.30 is: 2,512.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.08 : 4,343.36 = 1,821.30 : x
  2. Step 2: Convert to fraction form
    3,148.08/4,343.36 = 1,821.30/x
  3. Step 3: Cross multiply
    3,148.08x = 4,343.36 × 1,821.30
  4. Step 4: Simplify right side
    3,148.08x = 7,910,561.57
  5. Step 5: Solve for x
    x = 7,910,561.57/3,148.08
  6. Step 6: Final answer
    x = 2,512.82

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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.