Home / 1,923.87-2,655-1,262.46

Finding the Fourth Proportional to 1,923.87, 2,655 and 1,262.46

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Solution

The fourth proportional to 1,923.87, 2,655 and 1,262.46 is: 1,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.87 : 2,655 = 1,262.46 : x
  2. Step 2: Convert to fraction form
    1,923.87/2,655 = 1,262.46/x
  3. Step 3: Cross multiply
    1,923.87x = 2,655 × 1,262.46
  4. Step 4: Simplify right side
    1,923.87x = 3,351,831.30
  5. Step 5: Solve for x
    x = 3,351,831.30/1,923.87
  6. Step 6: Final answer
    x = 1,742.23

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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.