Home / 5,146.92-7,720.08-1,859.16

Finding the Fourth Proportional to 5,146.92, 7,720.08 and 1,859.16

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Solution

The fourth proportional to 5,146.92, 7,720.08 and 1,859.16 is: 2,788.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.92 : 7,720.08 = 1,859.16 : x
  2. Step 2: Convert to fraction form
    5,146.92/7,720.08 = 1,859.16/x
  3. Step 3: Cross multiply
    5,146.92x = 7,720.08 × 1,859.16
  4. Step 4: Simplify right side
    5,146.92x = 14,352,863.93
  5. Step 5: Solve for x
    x = 14,352,863.93/5,146.92
  6. Step 6: Final answer
    x = 2,788.63

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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.