Home / 2,856.12-3,941.70-1,736.79

Finding the Fourth Proportional to 2,856.12, 3,941.70 and 1,736.79

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Solution

The fourth proportional to 2,856.12, 3,941.70 and 1,736.79 is: 2,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.12 : 3,941.70 = 1,736.79 : x
  2. Step 2: Convert to fraction form
    2,856.12/3,941.70 = 1,736.79/x
  3. Step 3: Cross multiply
    2,856.12x = 3,941.70 × 1,736.79
  4. Step 4: Simplify right side
    2,856.12x = 6,845,905.14
  5. Step 5: Solve for x
    x = 6,845,905.14/2,856.12
  6. Step 6: Final answer
    x = 2,396.92

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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.