Home / 3,416.40-5,125.88-1,225.04

Finding the Fourth Proportional to 3,416.40, 5,125.88 and 1,225.04

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Solution

The fourth proportional to 3,416.40, 5,125.88 and 1,225.04 is: 1,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.40 : 5,125.88 = 1,225.04 : x
  2. Step 2: Convert to fraction form
    3,416.40/5,125.88 = 1,225.04/x
  3. Step 3: Cross multiply
    3,416.40x = 5,125.88 × 1,225.04
  4. Step 4: Simplify right side
    3,416.40x = 6,279,408.04
  5. Step 5: Solve for x
    x = 6,279,408.04/3,416.40
  6. Step 6: Final answer
    x = 1,838.02

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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.