Home / 4,831.11-6,664.68-2,840.40

Finding the Fourth Proportional to 4,831.11, 6,664.68 and 2,840.40

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Solution

The fourth proportional to 4,831.11, 6,664.68 and 2,840.40 is: 3,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.11 : 6,664.68 = 2,840.40 : x
  2. Step 2: Convert to fraction form
    4,831.11/6,664.68 = 2,840.40/x
  3. Step 3: Cross multiply
    4,831.11x = 6,664.68 × 2,840.40
  4. Step 4: Simplify right side
    4,831.11x = 18,930,357.07
  5. Step 5: Solve for x
    x = 18,930,357.07/4,831.11
  6. Step 6: Final answer
    x = 3,918.43

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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.