Home / 2,828.80-4,213.08-2,726.76

Finding the Fourth Proportional to 2,828.80, 4,213.08 and 2,726.76

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Solution

The fourth proportional to 2,828.80, 4,213.08 and 2,726.76 is: 4,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.80 : 4,213.08 = 2,726.76 : x
  2. Step 2: Convert to fraction form
    2,828.80/4,213.08 = 2,726.76/x
  3. Step 3: Cross multiply
    2,828.80x = 4,213.08 × 2,726.76
  4. Step 4: Simplify right side
    2,828.80x = 11,488,058.02
  5. Step 5: Solve for x
    x = 11,488,058.02/2,828.80
  6. Step 6: Final answer
    x = 4,061.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.