Home / 2,808.91-3,876.15-1,566.67

Finding the Fourth Proportional to 2,808.91, 3,876.15 and 1,566.67

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Solution

The fourth proportional to 2,808.91, 3,876.15 and 1,566.67 is: 2,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.91 : 3,876.15 = 1,566.67 : x
  2. Step 2: Convert to fraction form
    2,808.91/3,876.15 = 1,566.67/x
  3. Step 3: Cross multiply
    2,808.91x = 3,876.15 × 1,566.67
  4. Step 4: Simplify right side
    2,808.91x = 6,072,647.92
  5. Step 5: Solve for x
    x = 6,072,647.92/2,808.91
  6. Step 6: Final answer
    x = 2,161.92

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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.