Home / 2,023.45-2,792.14-1,139.06

Finding the Fourth Proportional to 2,023.45, 2,792.14 and 1,139.06

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Solution

The fourth proportional to 2,023.45, 2,792.14 and 1,139.06 is: 1,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.45 : 2,792.14 = 1,139.06 : x
  2. Step 2: Convert to fraction form
    2,023.45/2,792.14 = 1,139.06/x
  3. Step 3: Cross multiply
    2,023.45x = 2,792.14 × 1,139.06
  4. Step 4: Simplify right side
    2,023.45x = 3,180,419.12
  5. Step 5: Solve for x
    x = 3,180,419.12/2,023.45
  6. Step 6: Final answer
    x = 1,571.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.