Home / 5,110.90-7,668.29-1,993.10

Finding the Fourth Proportional to 5,110.90, 7,668.29 and 1,993.10

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Solution

The fourth proportional to 5,110.90, 7,668.29 and 1,993.10 is: 2,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.90 : 7,668.29 = 1,993.10 : x
  2. Step 2: Convert to fraction form
    5,110.90/7,668.29 = 1,993.10/x
  3. Step 3: Cross multiply
    5,110.90x = 7,668.29 × 1,993.10
  4. Step 4: Simplify right side
    5,110.90x = 15,283,635.44
  5. Step 5: Solve for x
    x = 15,283,635.44/5,110.90
  6. Step 6: Final answer
    x = 2,990.40

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1.5x scale

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.