Home / 4,845.60-6,687.18-2,856.78

Finding the Fourth Proportional to 4,845.60, 6,687.18 and 2,856.78

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Solution

The fourth proportional to 4,845.60, 6,687.18 and 2,856.78 is: 3,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.60 : 6,687.18 = 2,856.78 : x
  2. Step 2: Convert to fraction form
    4,845.60/6,687.18 = 2,856.78/x
  3. Step 3: Cross multiply
    4,845.60x = 6,687.18 × 2,856.78
  4. Step 4: Simplify right side
    4,845.60x = 19,103,802.08
  5. Step 5: Solve for x
    x = 19,103,802.08/4,845.60
  6. Step 6: Final answer
    x = 3,942.50

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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.