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Finding the Fourth Proportional to 2,894.36, 3,994.29 and 1,774.66

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Solution

The fourth proportional to 2,894.36, 3,994.29 and 1,774.66 is: 2,449.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.36 : 3,994.29 = 1,774.66 : x
  2. Step 2: Convert to fraction form
    2,894.36/3,994.29 = 1,774.66/x
  3. Step 3: Cross multiply
    2,894.36x = 3,994.29 × 1,774.66
  4. Step 4: Simplify right side
    2,894.36x = 7,088,486.72
  5. Step 5: Solve for x
    x = 7,088,486.72/2,894.36
  6. Step 6: Final answer
    x = 2,449.07

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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.