Home / 2,856.18-3,941.82-1,677.64

Finding the Fourth Proportional to 2,856.18, 3,941.82 and 1,677.64

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Solution

The fourth proportional to 2,856.18, 3,941.82 and 1,677.64 is: 2,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.18 : 3,941.82 = 1,677.64 : x
  2. Step 2: Convert to fraction form
    2,856.18/3,941.82 = 1,677.64/x
  3. Step 3: Cross multiply
    2,856.18x = 3,941.82 × 1,677.64
  4. Step 4: Simplify right side
    2,856.18x = 6,612,954.90
  5. Step 5: Solve for x
    x = 6,612,954.90/2,856.18
  6. Step 6: Final answer
    x = 2,315.31

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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.