Home / 6,403.88-8,837.36-3,609.38

Finding the Fourth Proportional to 6,403.88, 8,837.36 and 3,609.38

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Solution

The fourth proportional to 6,403.88, 8,837.36 and 3,609.38 is: 4,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.88 : 8,837.36 = 3,609.38 : x
  2. Step 2: Convert to fraction form
    6,403.88/8,837.36 = 3,609.38/x
  3. Step 3: Cross multiply
    6,403.88x = 8,837.36 × 3,609.38
  4. Step 4: Simplify right side
    6,403.88x = 31,897,328.20
  5. Step 5: Solve for x
    x = 31,897,328.20/6,403.88
  6. Step 6: Final answer
    x = 4,980.94

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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.