Home / 2,658.12-3,985-2,310.64

Finding the Fourth Proportional to 2,658.12, 3,985 and 2,310.64

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Solution

The fourth proportional to 2,658.12, 3,985 and 2,310.64 is: 3,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.12 : 3,985 = 2,310.64 : x
  2. Step 2: Convert to fraction form
    2,658.12/3,985 = 2,310.64/x
  3. Step 3: Cross multiply
    2,658.12x = 3,985 × 2,310.64
  4. Step 4: Simplify right side
    2,658.12x = 9,207,900.40
  5. Step 5: Solve for x
    x = 9,207,900.40/2,658.12
  6. Step 6: Final answer
    x = 3,464.06

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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.