Home / 2,074.48-3,110.10-1,989.28

Finding the Fourth Proportional to 2,074.48, 3,110.10 and 1,989.28

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Solution

The fourth proportional to 2,074.48, 3,110.10 and 1,989.28 is: 2,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.48 : 3,110.10 = 1,989.28 : x
  2. Step 2: Convert to fraction form
    2,074.48/3,110.10 = 1,989.28/x
  3. Step 3: Cross multiply
    2,074.48x = 3,110.10 × 1,989.28
  4. Step 4: Simplify right side
    2,074.48x = 6,186,859.73
  5. Step 5: Solve for x
    x = 6,186,859.73/2,074.48
  6. Step 6: Final answer
    x = 2,982.37

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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.