Home / 5,613.62-8,420.94-2,838.56

Finding the Fourth Proportional to 5,613.62, 8,420.94 and 2,838.56

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Solution

The fourth proportional to 5,613.62, 8,420.94 and 2,838.56 is: 4,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.62 : 8,420.94 = 2,838.56 : x
  2. Step 2: Convert to fraction form
    5,613.62/8,420.94 = 2,838.56/x
  3. Step 3: Cross multiply
    5,613.62x = 8,420.94 × 2,838.56
  4. Step 4: Simplify right side
    5,613.62x = 23,903,343.45
  5. Step 5: Solve for x
    x = 23,903,343.45/5,613.62
  6. Step 6: Final answer
    x = 4,258.10

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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.