Home / 5,113.19-7,668.65-1,993.28

Finding the Fourth Proportional to 5,113.19, 7,668.65 and 1,993.28

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Solution

The fourth proportional to 5,113.19, 7,668.65 and 1,993.28 is: 2,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.19 : 7,668.65 = 1,993.28 : x
  2. Step 2: Convert to fraction form
    5,113.19/7,668.65 = 1,993.28/x
  3. Step 3: Cross multiply
    5,113.19x = 7,668.65 × 1,993.28
  4. Step 4: Simplify right side
    5,113.19x = 15,285,775.88
  5. Step 5: Solve for x
    x = 15,285,775.88/5,113.19
  6. Step 6: Final answer
    x = 2,989.48

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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.