Home / 3,831.63-5,286.84-2,507.28

Finding the Fourth Proportional to 3,831.63, 5,286.84 and 2,507.28

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Solution

The fourth proportional to 3,831.63, 5,286.84 and 2,507.28 is: 3,459.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.63 : 5,286.84 = 2,507.28 : x
  2. Step 2: Convert to fraction form
    3,831.63/5,286.84 = 2,507.28/x
  3. Step 3: Cross multiply
    3,831.63x = 5,286.84 × 2,507.28
  4. Step 4: Simplify right side
    3,831.63x = 13,255,588.20
  5. Step 5: Solve for x
    x = 13,255,588.20/3,831.63
  6. Step 6: Final answer
    x = 3,459.52

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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.