Home / 5,100.14-7,647.90-1,813.32

Finding the Fourth Proportional to 5,100.14, 7,647.90 and 1,813.32

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Solution

The fourth proportional to 5,100.14, 7,647.90 and 1,813.32 is: 2,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.14 : 7,647.90 = 1,813.32 : x
  2. Step 2: Convert to fraction form
    5,100.14/7,647.90 = 1,813.32/x
  3. Step 3: Cross multiply
    5,100.14x = 7,647.90 × 1,813.32
  4. Step 4: Simplify right side
    5,100.14x = 13,868,093.43
  5. Step 5: Solve for x
    x = 13,868,093.43/5,100.14
  6. Step 6: Final answer
    x = 2,719.16

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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.