Home / 3,431.84-4,734.20-2,170.77

Finding the Fourth Proportional to 3,431.84, 4,734.20 and 2,170.77

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Solution

The fourth proportional to 3,431.84, 4,734.20 and 2,170.77 is: 2,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.84 : 4,734.20 = 2,170.77 : x
  2. Step 2: Convert to fraction form
    3,431.84/4,734.20 = 2,170.77/x
  3. Step 3: Cross multiply
    3,431.84x = 4,734.20 × 2,170.77
  4. Step 4: Simplify right side
    3,431.84x = 10,276,848.48
  5. Step 5: Solve for x
    x = 10,276,848.48/3,431.84
  6. Step 6: Final answer
    x = 2,994.56

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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.