Home / 3,148.48-4,721.92-1,300.12

Finding the Fourth Proportional to 3,148.48, 4,721.92 and 1,300.12

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Solution

The fourth proportional to 3,148.48, 4,721.92 and 1,300.12 is: 1,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.48 : 4,721.92 = 1,300.12 : x
  2. Step 2: Convert to fraction form
    3,148.48/4,721.92 = 1,300.12/x
  3. Step 3: Cross multiply
    3,148.48x = 4,721.92 × 1,300.12
  4. Step 4: Simplify right side
    3,148.48x = 6,139,062.63
  5. Step 5: Solve for x
    x = 6,139,062.63/3,148.48
  6. Step 6: Final answer
    x = 1,949.85

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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.