Home / 2,814.75-3,885.27-1,766.81

Finding the Fourth Proportional to 2,814.75, 3,885.27 and 1,766.81

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Solution

The fourth proportional to 2,814.75, 3,885.27 and 1,766.81 is: 2,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.75 : 3,885.27 = 1,766.81 : x
  2. Step 2: Convert to fraction form
    2,814.75/3,885.27 = 1,766.81/x
  3. Step 3: Cross multiply
    2,814.75x = 3,885.27 × 1,766.81
  4. Step 4: Simplify right side
    2,814.75x = 6,864,536.98
  5. Step 5: Solve for x
    x = 6,864,536.98/2,814.75
  6. Step 6: Final answer
    x = 2,438.77

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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.