Home / 2,900.41-4,002.57-1,721.71

Finding the Fourth Proportional to 2,900.41, 4,002.57 and 1,721.71

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Solution

The fourth proportional to 2,900.41, 4,002.57 and 1,721.71 is: 2,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.41 : 4,002.57 = 1,721.71 : x
  2. Step 2: Convert to fraction form
    2,900.41/4,002.57 = 1,721.71/x
  3. Step 3: Cross multiply
    2,900.41x = 4,002.57 × 1,721.71
  4. Step 4: Simplify right side
    2,900.41x = 6,891,264.79
  5. Step 5: Solve for x
    x = 6,891,264.79/2,900.41
  6. Step 6: Final answer
    x = 2,375.96

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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.