Home / 2,051.51-2,831.29-1,255.36

Finding the Fourth Proportional to 2,051.51, 2,831.29 and 1,255.36

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Solution

The fourth proportional to 2,051.51, 2,831.29 and 1,255.36 is: 1,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.51 : 2,831.29 = 1,255.36 : x
  2. Step 2: Convert to fraction form
    2,051.51/2,831.29 = 1,255.36/x
  3. Step 3: Cross multiply
    2,051.51x = 2,831.29 × 1,255.36
  4. Step 4: Simplify right side
    2,051.51x = 3,554,288.21
  5. Step 5: Solve for x
    x = 3,554,288.21/2,051.51
  6. Step 6: Final answer
    x = 1,732.53

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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.