Home / 5,613.09-8,419.55-1,917.91

Finding the Fourth Proportional to 5,613.09, 8,419.55 and 1,917.91

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Solution

The fourth proportional to 5,613.09, 8,419.55 and 1,917.91 is: 2,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.09 : 8,419.55 = 1,917.91 : x
  2. Step 2: Convert to fraction form
    5,613.09/8,419.55 = 1,917.91/x
  3. Step 3: Cross multiply
    5,613.09x = 8,419.55 × 1,917.91
  4. Step 4: Simplify right side
    5,613.09x = 16,147,939.14
  5. Step 5: Solve for x
    x = 16,147,939.14/5,613.09
  6. Step 6: Final answer
    x = 2,876.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.