Home / 2,219.01-3,062.20-1,261.91

Finding the Fourth Proportional to 2,219.01, 3,062.20 and 1,261.91

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Solution

The fourth proportional to 2,219.01, 3,062.20 and 1,261.91 is: 1,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.01 : 3,062.20 = 1,261.91 : x
  2. Step 2: Convert to fraction form
    2,219.01/3,062.20 = 1,261.91/x
  3. Step 3: Cross multiply
    2,219.01x = 3,062.20 × 1,261.91
  4. Step 4: Simplify right side
    2,219.01x = 3,864,220.80
  5. Step 5: Solve for x
    x = 3,864,220.80/2,219.01
  6. Step 6: Final answer
    x = 1,741.42

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1.5x scale

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.