Home / 7,117.12-10,668.25-2,435.75

Finding the Fourth Proportional to 7,117.12, 10,668.25 and 2,435.75

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Solution

The fourth proportional to 7,117.12, 10,668.25 and 2,435.75 is: 3,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.12 : 10,668.25 = 2,435.75 : x
  2. Step 2: Convert to fraction form
    7,117.12/10,668.25 = 2,435.75/x
  3. Step 3: Cross multiply
    7,117.12x = 10,668.25 × 2,435.75
  4. Step 4: Simplify right side
    7,117.12x = 25,985,189.94
  5. Step 5: Solve for x
    x = 25,985,189.94/7,117.12
  6. Step 6: Final answer
    x = 3,651.08

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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.