Home / 2,711.35-3,743.40-2,215.18

Finding the Fourth Proportional to 2,711.35, 3,743.40 and 2,215.18

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Solution

The fourth proportional to 2,711.35, 3,743.40 and 2,215.18 is: 3,058.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.35 : 3,743.40 = 2,215.18 : x
  2. Step 2: Convert to fraction form
    2,711.35/3,743.40 = 2,215.18/x
  3. Step 3: Cross multiply
    2,711.35x = 3,743.40 × 2,215.18
  4. Step 4: Simplify right side
    2,711.35x = 8,292,304.81
  5. Step 5: Solve for x
    x = 8,292,304.81/2,711.35
  6. Step 6: Final answer
    x = 3,058.37

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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.