Home / 3,831.07-5,748.26-1,858.20

Finding the Fourth Proportional to 3,831.07, 5,748.26 and 1,858.20

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Solution

The fourth proportional to 3,831.07, 5,748.26 and 1,858.20 is: 2,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.07 : 5,748.26 = 1,858.20 : x
  2. Step 2: Convert to fraction form
    3,831.07/5,748.26 = 1,858.20/x
  3. Step 3: Cross multiply
    3,831.07x = 5,748.26 × 1,858.20
  4. Step 4: Simplify right side
    3,831.07x = 10,681,416.73
  5. Step 5: Solve for x
    x = 10,681,416.73/3,831.07
  6. Step 6: Final answer
    x = 2,788.10

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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.