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Finding the Fourth Proportional to 2,598.85, 3,903.72 and 2,208.79

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Solution

The fourth proportional to 2,598.85, 3,903.72 and 2,208.79 is: 3,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,598.85 : 3,903.72 = 2,208.79 : x
  2. Step 2: Convert to fraction form
    2,598.85/3,903.72 = 2,208.79/x
  3. Step 3: Cross multiply
    2,598.85x = 3,903.72 × 2,208.79
  4. Step 4: Simplify right side
    2,598.85x = 8,622,497.70
  5. Step 5: Solve for x
    x = 8,622,497.70/2,598.85
  6. Step 6: Final answer
    x = 3,317.81

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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.