Home / 6,213.96-9,321-1,831.44

Finding the Fourth Proportional to 6,213.96, 9,321 and 1,831.44

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Solution

The fourth proportional to 6,213.96, 9,321 and 1,831.44 is: 2,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213.96 : 9,321 = 1,831.44 : x
  2. Step 2: Convert to fraction form
    6,213.96/9,321 = 1,831.44/x
  3. Step 3: Cross multiply
    6,213.96x = 9,321 × 1,831.44
  4. Step 4: Simplify right side
    6,213.96x = 17,070,852.24
  5. Step 5: Solve for x
    x = 17,070,852.24/6,213.96
  6. Step 6: Final answer
    x = 2,747.18

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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.