Home / 3,530.24-4,876.79-2,821.15

Finding the Fourth Proportional to 3,530.24, 4,876.79 and 2,821.15

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Solution

The fourth proportional to 3,530.24, 4,876.79 and 2,821.15 is: 3,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.24 : 4,876.79 = 2,821.15 : x
  2. Step 2: Convert to fraction form
    3,530.24/4,876.79 = 2,821.15/x
  3. Step 3: Cross multiply
    3,530.24x = 4,876.79 × 2,821.15
  4. Step 4: Simplify right side
    3,530.24x = 13,758,131.72
  5. Step 5: Solve for x
    x = 13,758,131.72/3,530.24
  6. Step 6: Final answer
    x = 3,897.23

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1.5x scale

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.