Home / 2,210.60-3,050.68-1,215.96

Finding the Fourth Proportional to 2,210.60, 3,050.68 and 1,215.96

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Solution

The fourth proportional to 2,210.60, 3,050.68 and 1,215.96 is: 1,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.60 : 3,050.68 = 1,215.96 : x
  2. Step 2: Convert to fraction form
    2,210.60/3,050.68 = 1,215.96/x
  3. Step 3: Cross multiply
    2,210.60x = 3,050.68 × 1,215.96
  4. Step 4: Simplify right side
    2,210.60x = 3,709,504.85
  5. Step 5: Solve for x
    x = 3,709,504.85/2,210.60
  6. Step 6: Final answer
    x = 1,678.05

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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.