Home / 2,715.93-3,742.38-2,086.43

Finding the Fourth Proportional to 2,715.93, 3,742.38 and 2,086.43

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Solution

The fourth proportional to 2,715.93, 3,742.38 and 2,086.43 is: 2,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.93 : 3,742.38 = 2,086.43 : x
  2. Step 2: Convert to fraction form
    2,715.93/3,742.38 = 2,086.43/x
  3. Step 3: Cross multiply
    2,715.93x = 3,742.38 × 2,086.43
  4. Step 4: Simplify right side
    2,715.93x = 7,808,195.19
  5. Step 5: Solve for x
    x = 7,808,195.19/2,715.93
  6. Step 6: Final answer
    x = 2,874.96

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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.