Home / 2,210.46-3,050.36-1,215.81

Finding the Fourth Proportional to 2,210.46, 3,050.36 and 1,215.81

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Solution

The fourth proportional to 2,210.46, 3,050.36 and 1,215.81 is: 1,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.46 : 3,050.36 = 1,215.81 : x
  2. Step 2: Convert to fraction form
    2,210.46/3,050.36 = 1,215.81/x
  3. Step 3: Cross multiply
    2,210.46x = 3,050.36 × 1,215.81
  4. Step 4: Simplify right side
    2,210.46x = 3,708,656.67
  5. Step 5: Solve for x
    x = 3,708,656.67/2,210.46
  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.