Home / 3,831.63-5,748.82-1,885.20

Finding the Fourth Proportional to 3,831.63, 5,748.82 and 1,885.20

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Solution

The fourth proportional to 3,831.63, 5,748.82 and 1,885.20 is: 2,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.63 : 5,748.82 = 1,885.20 : x
  2. Step 2: Convert to fraction form
    3,831.63/5,748.82 = 1,885.20/x
  3. Step 3: Cross multiply
    3,831.63x = 5,748.82 × 1,885.20
  4. Step 4: Simplify right side
    3,831.63x = 10,837,675.46
  5. Step 5: Solve for x
    x = 10,837,675.46/3,831.63
  6. Step 6: Final answer
    x = 2,828.48

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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.