Home / 2,212.77-3,056.31-1,655.70

Finding the Fourth Proportional to 2,212.77, 3,056.31 and 1,655.70

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Solution

The fourth proportional to 2,212.77, 3,056.31 and 1,655.70 is: 2,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.77 : 3,056.31 = 1,655.70 : x
  2. Step 2: Convert to fraction form
    2,212.77/3,056.31 = 1,655.70/x
  3. Step 3: Cross multiply
    2,212.77x = 3,056.31 × 1,655.70
  4. Step 4: Simplify right side
    2,212.77x = 5,060,332.47
  5. Step 5: Solve for x
    x = 5,060,332.47/2,212.77
  6. Step 6: Final answer
    x = 2,286.88

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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.