Home / 5,113.85-7,665.91-1,995.85

Finding the Fourth Proportional to 5,113.85, 7,665.91 and 1,995.85

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Solution

The fourth proportional to 5,113.85, 7,665.91 and 1,995.85 is: 2,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.85 : 7,665.91 = 1,995.85 : x
  2. Step 2: Convert to fraction form
    5,113.85/7,665.91 = 1,995.85/x
  3. Step 3: Cross multiply
    5,113.85x = 7,665.91 × 1,995.85
  4. Step 4: Simplify right side
    5,113.85x = 15,300,011.07
  5. Step 5: Solve for x
    x = 15,300,011.07/5,113.85
  6. Step 6: Final answer
    x = 2,991.88

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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.