Home / 3,388.35-4,676.18-1,972.47

Finding the Fourth Proportional to 3,388.35, 4,676.18 and 1,972.47

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Solution

The fourth proportional to 3,388.35, 4,676.18 and 1,972.47 is: 2,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.35 : 4,676.18 = 1,972.47 : x
  2. Step 2: Convert to fraction form
    3,388.35/4,676.18 = 1,972.47/x
  3. Step 3: Cross multiply
    3,388.35x = 4,676.18 × 1,972.47
  4. Step 4: Simplify right side
    3,388.35x = 9,223,624.76
  5. Step 5: Solve for x
    x = 9,223,624.76/3,388.35
  6. Step 6: Final answer
    x = 2,722.16

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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.