Home / 3,890.12-5,831.36-1,549.34

Finding the Fourth Proportional to 3,890.12, 5,831.36 and 1,549.34

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Solution

The fourth proportional to 3,890.12, 5,831.36 and 1,549.34 is: 2,322.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.12 : 5,831.36 = 1,549.34 : x
  2. Step 2: Convert to fraction form
    3,890.12/5,831.36 = 1,549.34/x
  3. Step 3: Cross multiply
    3,890.12x = 5,831.36 × 1,549.34
  4. Step 4: Simplify right side
    3,890.12x = 9,034,759.30
  5. Step 5: Solve for x
    x = 9,034,759.30/3,890.12
  6. Step 6: Final answer
    x = 2,322.49

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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.