Home / 2,074.08-3,110.46-841.20

Finding the Fourth Proportional to 2,074.08, 3,110.46 and 841.20

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Solution

The fourth proportional to 2,074.08, 3,110.46 and 841.20 is: 1,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.08 : 3,110.46 = 841.20 : x
  2. Step 2: Convert to fraction form
    2,074.08/3,110.46 = 841.20/x
  3. Step 3: Cross multiply
    2,074.08x = 3,110.46 × 841.20
  4. Step 4: Simplify right side
    2,074.08x = 2,616,518.95
  5. Step 5: Solve for x
    x = 2,616,518.95/2,074.08
  6. Step 6: Final answer
    x = 1,261.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.