Home / 2,831.19-4,242.93-2,137.26

Finding the Fourth Proportional to 2,831.19, 4,242.93 and 2,137.26

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Solution

The fourth proportional to 2,831.19, 4,242.93 and 2,137.26 is: 3,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.19 : 4,242.93 = 2,137.26 : x
  2. Step 2: Convert to fraction form
    2,831.19/4,242.93 = 2,137.26/x
  3. Step 3: Cross multiply
    2,831.19x = 4,242.93 × 2,137.26
  4. Step 4: Simplify right side
    2,831.19x = 9,068,244.57
  5. Step 5: Solve for x
    x = 9,068,244.57/2,831.19
  6. Step 6: Final answer
    x = 3,202.98

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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.