Home / 5,402.39-8,099.60-2,113.79

Finding the Fourth Proportional to 5,402.39, 8,099.60 and 2,113.79

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Solution

The fourth proportional to 5,402.39, 8,099.60 and 2,113.79 is: 3,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.39 : 8,099.60 = 2,113.79 : x
  2. Step 2: Convert to fraction form
    5,402.39/8,099.60 = 2,113.79/x
  3. Step 3: Cross multiply
    5,402.39x = 8,099.60 × 2,113.79
  4. Step 4: Simplify right side
    5,402.39x = 17,120,802.42
  5. Step 5: Solve for x
    x = 17,120,802.42/5,402.39
  6. Step 6: Final answer
    x = 3,169.12

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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.