Home / 3,071.70-4,238.57-2,079.14

Finding the Fourth Proportional to 3,071.70, 4,238.57 and 2,079.14

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Solution

The fourth proportional to 3,071.70, 4,238.57 and 2,079.14 is: 2,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.70 : 4,238.57 = 2,079.14 : x
  2. Step 2: Convert to fraction form
    3,071.70/4,238.57 = 2,079.14/x
  3. Step 3: Cross multiply
    3,071.70x = 4,238.57 × 2,079.14
  4. Step 4: Simplify right side
    3,071.70x = 8,812,580.43
  5. Step 5: Solve for x
    x = 8,812,580.43/3,071.70
  6. Step 6: Final answer
    x = 2,868.96

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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.