Home / 2,808.33-3,875.67-1,613.69

Finding the Fourth Proportional to 2,808.33, 3,875.67 and 1,613.69

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Solution

The fourth proportional to 2,808.33, 3,875.67 and 1,613.69 is: 2,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.33 : 3,875.67 = 1,613.69 : x
  2. Step 2: Convert to fraction form
    2,808.33/3,875.67 = 1,613.69/x
  3. Step 3: Cross multiply
    2,808.33x = 3,875.67 × 1,613.69
  4. Step 4: Simplify right side
    2,808.33x = 6,254,121.85
  5. Step 5: Solve for x
    x = 6,254,121.85/2,808.33
  6. Step 6: Final answer
    x = 2,226.99

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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.