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Finding the Fourth Proportional to 4,199.81, 5,795.19 and 2,520.90

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Solution

The fourth proportional to 4,199.81, 5,795.19 and 2,520.90 is: 3,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.81 : 5,795.19 = 2,520.90 : x
  2. Step 2: Convert to fraction form
    4,199.81/5,795.19 = 2,520.90/x
  3. Step 3: Cross multiply
    4,199.81x = 5,795.19 × 2,520.90
  4. Step 4: Simplify right side
    4,199.81x = 14,609,094.47
  5. Step 5: Solve for x
    x = 14,609,094.47/4,199.81
  6. Step 6: Final answer
    x = 3,478.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.