Home / 5,613.50-8,421.47-2,150.75

Finding the Fourth Proportional to 5,613.50, 8,421.47 and 2,150.75

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Solution

The fourth proportional to 5,613.50, 8,421.47 and 2,150.75 is: 3,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.50 : 8,421.47 = 2,150.75 : x
  2. Step 2: Convert to fraction form
    5,613.50/8,421.47 = 2,150.75/x
  3. Step 3: Cross multiply
    5,613.50x = 8,421.47 × 2,150.75
  4. Step 4: Simplify right side
    5,613.50x = 18,112,465.85
  5. Step 5: Solve for x
    x = 18,112,465.85/5,613.50
  6. Step 6: Final answer
    x = 3,226.59

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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.