Home / 6,438.24-8,881.06-3,785.16

Finding the Fourth Proportional to 6,438.24, 8,881.06 and 3,785.16

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Solution

The fourth proportional to 6,438.24, 8,881.06 and 3,785.16 is: 5,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.24 : 8,881.06 = 3,785.16 : x
  2. Step 2: Convert to fraction form
    6,438.24/8,881.06 = 3,785.16/x
  3. Step 3: Cross multiply
    6,438.24x = 8,881.06 × 3,785.16
  4. Step 4: Simplify right side
    6,438.24x = 33,616,233.07
  5. Step 5: Solve for x
    x = 33,616,233.07/6,438.24
  6. Step 6: Final answer
    x = 5,221.34

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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.