Home / 2,051.39-2,831.13-1,212.37

Finding the Fourth Proportional to 2,051.39, 2,831.13 and 1,212.37

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Solution

The fourth proportional to 2,051.39, 2,831.13 and 1,212.37 is: 1,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.39 : 2,831.13 = 1,212.37 : x
  2. Step 2: Convert to fraction form
    2,051.39/2,831.13 = 1,212.37/x
  3. Step 3: Cross multiply
    2,051.39x = 2,831.13 × 1,212.37
  4. Step 4: Simplify right side
    2,051.39x = 3,432,370.00
  5. Step 5: Solve for x
    x = 3,432,370.00/2,051.39
  6. Step 6: Final answer
    x = 1,673.19

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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.