Home / 4,981.21-6,873.67-2,856.72

Finding the Fourth Proportional to 4,981.21, 6,873.67 and 2,856.72

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Solution

The fourth proportional to 4,981.21, 6,873.67 and 2,856.72 is: 3,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.21 : 6,873.67 = 2,856.72 : x
  2. Step 2: Convert to fraction form
    4,981.21/6,873.67 = 2,856.72/x
  3. Step 3: Cross multiply
    4,981.21x = 6,873.67 × 2,856.72
  4. Step 4: Simplify right side
    4,981.21x = 19,636,150.56
  5. Step 5: Solve for x
    x = 19,636,150.56/4,981.21
  6. Step 6: Final answer
    x = 3,942.04

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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.