Home / 1,222.44-1,831.38-1,130.76

Finding the Fourth Proportional to 1,222.44, 1,831.38 and 1,130.76

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Solution

The fourth proportional to 1,222.44, 1,831.38 and 1,130.76 is: 1,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.44 : 1,831.38 = 1,130.76 : x
  2. Step 2: Convert to fraction form
    1,222.44/1,831.38 = 1,130.76/x
  3. Step 3: Cross multiply
    1,222.44x = 1,831.38 × 1,130.76
  4. Step 4: Simplify right side
    1,222.44x = 2,070,851.25
  5. Step 5: Solve for x
    x = 2,070,851.25/1,222.44
  6. Step 6: Final answer
    x = 1,694.03

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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.