Home / 3,848.11-5,310.37-2,169.70

Finding the Fourth Proportional to 3,848.11, 5,310.37 and 2,169.70

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Solution

The fourth proportional to 3,848.11, 5,310.37 and 2,169.70 is: 2,994.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.11 : 5,310.37 = 2,169.70 : x
  2. Step 2: Convert to fraction form
    3,848.11/5,310.37 = 2,169.70/x
  3. Step 3: Cross multiply
    3,848.11x = 5,310.37 × 2,169.70
  4. Step 4: Simplify right side
    3,848.11x = 11,521,909.79
  5. Step 5: Solve for x
    x = 11,521,909.79/3,848.11
  6. Step 6: Final answer
    x = 2,994.17

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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.