Home / 3,416.96-5,125.44-2,690.40

Finding the Fourth Proportional to 3,416.96, 5,125.44 and 2,690.40

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Solution

The fourth proportional to 3,416.96, 5,125.44 and 2,690.40 is: 4,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.96 : 5,125.44 = 2,690.40 : x
  2. Step 2: Convert to fraction form
    3,416.96/5,125.44 = 2,690.40/x
  3. Step 3: Cross multiply
    3,416.96x = 5,125.44 × 2,690.40
  4. Step 4: Simplify right side
    3,416.96x = 13,789,483.78
  5. Step 5: Solve for x
    x = 13,789,483.78/3,416.96
  6. Step 6: Final answer
    x = 4,035.60

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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.