Home / 6,438.69-8,884.37-3,750.35

Finding the Fourth Proportional to 6,438.69, 8,884.37 and 3,750.35

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Solution

The fourth proportional to 6,438.69, 8,884.37 and 3,750.35 is: 5,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.69 : 8,884.37 = 3,750.35 : x
  2. Step 2: Convert to fraction form
    6,438.69/8,884.37 = 3,750.35/x
  3. Step 3: Cross multiply
    6,438.69x = 8,884.37 × 3,750.35
  4. Step 4: Simplify right side
    6,438.69x = 33,319,471.61
  5. Step 5: Solve for x
    x = 33,319,471.61/6,438.69
  6. Step 6: Final answer
    x = 5,174.89

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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.