Home / 6,636.15-9,158.90-3,985.02

Finding the Fourth Proportional to 6,636.15, 9,158.90 and 3,985.02

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Solution

The fourth proportional to 6,636.15, 9,158.90 and 3,985.02 is: 5,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.15 : 9,158.90 = 3,985.02 : x
  2. Step 2: Convert to fraction form
    6,636.15/9,158.90 = 3,985.02/x
  3. Step 3: Cross multiply
    6,636.15x = 9,158.90 × 3,985.02
  4. Step 4: Simplify right side
    6,636.15x = 36,498,379.75
  5. Step 5: Solve for x
    x = 36,498,379.75/6,636.15
  6. Step 6: Final answer
    x = 5,499.93

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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.