Home / 5,613.41-8,420.37-2,102.51

Finding the Fourth Proportional to 5,613.41, 8,420.37 and 2,102.51

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Solution

The fourth proportional to 5,613.41, 8,420.37 and 2,102.51 is: 3,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.41 : 8,420.37 = 2,102.51 : x
  2. Step 2: Convert to fraction form
    5,613.41/8,420.37 = 2,102.51/x
  3. Step 3: Cross multiply
    5,613.41x = 8,420.37 × 2,102.51
  4. Step 4: Simplify right side
    5,613.41x = 17,703,912.13
  5. Step 5: Solve for x
    x = 17,703,912.13/5,613.41
  6. Step 6: Final answer
    x = 3,153.86

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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.