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Finding the Fourth Proportional to 2,110.78, 2,910.16 and 1,446.47

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Solution

The fourth proportional to 2,110.78, 2,910.16 and 1,446.47 is: 1,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.78 : 2,910.16 = 1,446.47 : x
  2. Step 2: Convert to fraction form
    2,110.78/2,910.16 = 1,446.47/x
  3. Step 3: Cross multiply
    2,110.78x = 2,910.16 × 1,446.47
  4. Step 4: Simplify right side
    2,110.78x = 4,209,476.39
  5. Step 5: Solve for x
    x = 4,209,476.39/2,110.78
  6. Step 6: Final answer
    x = 1,994.28

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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.