Home / 2,051.62-2,831.13-1,119.94

Finding the Fourth Proportional to 2,051.62, 2,831.13 and 1,119.94

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Solution

The fourth proportional to 2,051.62, 2,831.13 and 1,119.94 is: 1,545.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.62 : 2,831.13 = 1,119.94 : x
  2. Step 2: Convert to fraction form
    2,051.62/2,831.13 = 1,119.94/x
  3. Step 3: Cross multiply
    2,051.62x = 2,831.13 × 1,119.94
  4. Step 4: Simplify right side
    2,051.62x = 3,170,695.73
  5. Step 5: Solve for x
    x = 3,170,695.73/2,051.62
  6. Step 6: Final answer
    x = 1,545.46

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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.