Home / 2,210.42-3,050.44-1,215.76

Finding the Fourth Proportional to 2,210.42, 3,050.44 and 1,215.76

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Solution

The fourth proportional to 2,210.42, 3,050.44 and 1,215.76 is: 1,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.42 : 3,050.44 = 1,215.76 : x
  2. Step 2: Convert to fraction form
    2,210.42/3,050.44 = 1,215.76/x
  3. Step 3: Cross multiply
    2,210.42x = 3,050.44 × 1,215.76
  4. Step 4: Simplify right side
    2,210.42x = 3,708,596.27
  5. Step 5: Solve for x
    x = 3,708,596.27/2,210.42
  6. Step 6: Final answer
    x = 1,677.78

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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.