Home / 5,247.45-7,869.18-1,736.40

Finding the Fourth Proportional to 5,247.45, 7,869.18 and 1,736.40

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Solution

The fourth proportional to 5,247.45, 7,869.18 and 1,736.40 is: 2,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.45 : 7,869.18 = 1,736.40 : x
  2. Step 2: Convert to fraction form
    5,247.45/7,869.18 = 1,736.40/x
  3. Step 3: Cross multiply
    5,247.45x = 7,869.18 × 1,736.40
  4. Step 4: Simplify right side
    5,247.45x = 13,664,044.15
  5. Step 5: Solve for x
    x = 13,664,044.15/5,247.45
  6. Step 6: Final answer
    x = 2,603.94

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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.