Home / 2,051.78-2,831.55-1,167.62

Finding the Fourth Proportional to 2,051.78, 2,831.55 and 1,167.62

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Solution

The fourth proportional to 2,051.78, 2,831.55 and 1,167.62 is: 1,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.78 : 2,831.55 = 1,167.62 : x
  2. Step 2: Convert to fraction form
    2,051.78/2,831.55 = 1,167.62/x
  3. Step 3: Cross multiply
    2,051.78x = 2,831.55 × 1,167.62
  4. Step 4: Simplify right side
    2,051.78x = 3,306,174.41
  5. Step 5: Solve for x
    x = 3,306,174.41/2,051.78
  6. Step 6: Final answer
    x = 1,611.37

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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.