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Finding the Fourth Proportional to 3,392.61, 5,099.10 and 2,811.43

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Solution

The fourth proportional to 3,392.61, 5,099.10 and 2,811.43 is: 4,225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.61 : 5,099.10 = 2,811.43 : x
  2. Step 2: Convert to fraction form
    3,392.61/5,099.10 = 2,811.43/x
  3. Step 3: Cross multiply
    3,392.61x = 5,099.10 × 2,811.43
  4. Step 4: Simplify right side
    3,392.61x = 14,335,762.71
  5. Step 5: Solve for x
    x = 14,335,762.71/3,392.61
  6. Step 6: Final answer
    x = 4,225.59

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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.