Home / 3,375.36-4,658.45-2,116.76

Finding the Fourth Proportional to 3,375.36, 4,658.45 and 2,116.76

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Solution

The fourth proportional to 3,375.36, 4,658.45 and 2,116.76 is: 2,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.36 : 4,658.45 = 2,116.76 : x
  2. Step 2: Convert to fraction form
    3,375.36/4,658.45 = 2,116.76/x
  3. Step 3: Cross multiply
    3,375.36x = 4,658.45 × 2,116.76
  4. Step 4: Simplify right side
    3,375.36x = 9,860,786.75
  5. Step 5: Solve for x
    x = 9,860,786.75/3,375.36
  6. Step 6: Final answer
    x = 2,921.40

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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.