Home / 6,721.47-10,073.44-3,431.79

Finding the Fourth Proportional to 6,721.47, 10,073.44 and 3,431.79

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Solution

The fourth proportional to 6,721.47, 10,073.44 and 3,431.79 is: 5,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.47 : 10,073.44 = 3,431.79 : x
  2. Step 2: Convert to fraction form
    6,721.47/10,073.44 = 3,431.79/x
  3. Step 3: Cross multiply
    6,721.47x = 10,073.44 × 3,431.79
  4. Step 4: Simplify right side
    6,721.47x = 34,569,890.74
  5. Step 5: Solve for x
    x = 34,569,890.74/6,721.47
  6. Step 6: Final answer
    x = 5,143.21

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1.5x scale

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.