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Finding the Fourth Proportional to 7,005.91, 9,668.02 and 3,862.10

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Solution

The fourth proportional to 7,005.91, 9,668.02 and 3,862.10 is: 5,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.91 : 9,668.02 = 3,862.10 : x
  2. Step 2: Convert to fraction form
    7,005.91/9,668.02 = 3,862.10/x
  3. Step 3: Cross multiply
    7,005.91x = 9,668.02 × 3,862.10
  4. Step 4: Simplify right side
    7,005.91x = 37,338,860.04
  5. Step 5: Solve for x
    x = 37,338,860.04/7,005.91
  6. Step 6: Final answer
    x = 5,329.62

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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.