Home / 4,726.64-7,091.76-2,131.40

Finding the Fourth Proportional to 4,726.64, 7,091.76 and 2,131.40

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Solution

The fourth proportional to 4,726.64, 7,091.76 and 2,131.40 is: 3,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,726.64 : 7,091.76 = 2,131.40 : x
  2. Step 2: Convert to fraction form
    4,726.64/7,091.76 = 2,131.40/x
  3. Step 3: Cross multiply
    4,726.64x = 7,091.76 × 2,131.40
  4. Step 4: Simplify right side
    4,726.64x = 15,115,377.26
  5. Step 5: Solve for x
    x = 15,115,377.26/4,726.64
  6. Step 6: Final answer
    x = 3,197.91

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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.