Home / 1,831.16-2,528.16-1,202.80

Finding the Fourth Proportional to 1,831.16, 2,528.16 and 1,202.80

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Solution

The fourth proportional to 1,831.16, 2,528.16 and 1,202.80 is: 1,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.16 : 2,528.16 = 1,202.80 : x
  2. Step 2: Convert to fraction form
    1,831.16/2,528.16 = 1,202.80/x
  3. Step 3: Cross multiply
    1,831.16x = 2,528.16 × 1,202.80
  4. Step 4: Simplify right side
    1,831.16x = 3,040,870.85
  5. Step 5: Solve for x
    x = 3,040,870.85/1,831.16
  6. Step 6: Final answer
    x = 1,660.63

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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.