Home / 5,388.90-7,436.66-3,031.06

Finding the Fourth Proportional to 5,388.90, 7,436.66 and 3,031.06

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Solution

The fourth proportional to 5,388.90, 7,436.66 and 3,031.06 is: 4,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.90 : 7,436.66 = 3,031.06 : x
  2. Step 2: Convert to fraction form
    5,388.90/7,436.66 = 3,031.06/x
  3. Step 3: Cross multiply
    5,388.90x = 7,436.66 × 3,031.06
  4. Step 4: Simplify right side
    5,388.90x = 22,540,928.91
  5. Step 5: Solve for x
    x = 22,540,928.91/5,388.90
  6. Step 6: Final answer
    x = 4,182.84

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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.