Home / 4,081.19-5,631.26-2,820.29

Finding the Fourth Proportional to 4,081.19, 5,631.26 and 2,820.29

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Solution

The fourth proportional to 4,081.19, 5,631.26 and 2,820.29 is: 3,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.19 : 5,631.26 = 2,820.29 : x
  2. Step 2: Convert to fraction form
    4,081.19/5,631.26 = 2,820.29/x
  3. Step 3: Cross multiply
    4,081.19x = 5,631.26 × 2,820.29
  4. Step 4: Simplify right side
    4,081.19x = 15,881,744.01
  5. Step 5: Solve for x
    x = 15,881,744.01/4,081.19
  6. Step 6: Final answer
    x = 3,891.45

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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.