Home / 5,198.40-7,788.96-3,656.16

Finding the Fourth Proportional to 5,198.40, 7,788.96 and 3,656.16

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Solution

The fourth proportional to 5,198.40, 7,788.96 and 3,656.16 is: 5,478.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.40 : 7,788.96 = 3,656.16 : x
  2. Step 2: Convert to fraction form
    5,198.40/7,788.96 = 3,656.16/x
  3. Step 3: Cross multiply
    5,198.40x = 7,788.96 × 3,656.16
  4. Step 4: Simplify right side
    5,198.40x = 28,477,683.99
  5. Step 5: Solve for x
    x = 28,477,683.99/5,198.40
  6. Step 6: Final answer
    x = 5,478.16

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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.