Home / 2,856.20-3,941.82-1,677.22

Finding the Fourth Proportional to 2,856.20, 3,941.82 and 1,677.22

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Solution

The fourth proportional to 2,856.20, 3,941.82 and 1,677.22 is: 2,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.20 : 3,941.82 = 1,677.22 : x
  2. Step 2: Convert to fraction form
    2,856.20/3,941.82 = 1,677.22/x
  3. Step 3: Cross multiply
    2,856.20x = 3,941.82 × 1,677.22
  4. Step 4: Simplify right side
    2,856.20x = 6,611,299.34
  5. Step 5: Solve for x
    x = 6,611,299.34/2,856.20
  6. Step 6: Final answer
    x = 2,314.72

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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.