Home / 6,287.15-9,431.88-2,070.64

Finding the Fourth Proportional to 6,287.15, 9,431.88 and 2,070.64

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Solution

The fourth proportional to 6,287.15, 9,431.88 and 2,070.64 is: 3,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.15 : 9,431.88 = 2,070.64 : x
  2. Step 2: Convert to fraction form
    6,287.15/9,431.88 = 2,070.64/x
  3. Step 3: Cross multiply
    6,287.15x = 9,431.88 × 2,070.64
  4. Step 4: Simplify right side
    6,287.15x = 19,530,028.00
  5. Step 5: Solve for x
    x = 19,530,028.00/6,287.15
  6. Step 6: Final answer
    x = 3,106.34

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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.