Home / 2,553.42-3,831.80-1,092.69

Finding the Fourth Proportional to 2,553.42, 3,831.80 and 1,092.69

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Solution

The fourth proportional to 2,553.42, 3,831.80 and 1,092.69 is: 1,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.42 : 3,831.80 = 1,092.69 : x
  2. Step 2: Convert to fraction form
    2,553.42/3,831.80 = 1,092.69/x
  3. Step 3: Cross multiply
    2,553.42x = 3,831.80 × 1,092.69
  4. Step 4: Simplify right side
    2,553.42x = 4,186,953.81
  5. Step 5: Solve for x
    x = 4,186,953.81/2,553.42
  6. Step 6: Final answer
    x = 1,639.74

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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.