Home / 2,856.79-3,942.35-1,597.83

Finding the Fourth Proportional to 2,856.79, 3,942.35 and 1,597.83

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Solution

The fourth proportional to 2,856.79, 3,942.35 and 1,597.83 is: 2,205.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.79 : 3,942.35 = 1,597.83 : x
  2. Step 2: Convert to fraction form
    2,856.79/3,942.35 = 1,597.83/x
  3. Step 3: Cross multiply
    2,856.79x = 3,942.35 × 1,597.83
  4. Step 4: Simplify right side
    2,856.79x = 6,299,217.09
  5. Step 5: Solve for x
    x = 6,299,217.09/2,856.79
  6. Step 6: Final answer
    x = 2,205.00

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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.