Home / 3,835.77-5,291.81-2,219.61

Finding the Fourth Proportional to 3,835.77, 5,291.81 and 2,219.61

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Solution

The fourth proportional to 3,835.77, 5,291.81 and 2,219.61 is: 3,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.77 : 5,291.81 = 2,219.61 : x
  2. Step 2: Convert to fraction form
    3,835.77/5,291.81 = 2,219.61/x
  3. Step 3: Cross multiply
    3,835.77x = 5,291.81 × 2,219.61
  4. Step 4: Simplify right side
    3,835.77x = 11,745,754.39
  5. Step 5: Solve for x
    x = 11,745,754.39/3,835.77
  6. Step 6: Final answer
    x = 3,062.16

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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.