Home / 7,130.26-9,839.98-3,986.44

Finding the Fourth Proportional to 7,130.26, 9,839.98 and 3,986.44

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Solution

The fourth proportional to 7,130.26, 9,839.98 and 3,986.44 is: 5,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.26 : 9,839.98 = 3,986.44 : x
  2. Step 2: Convert to fraction form
    7,130.26/9,839.98 = 3,986.44/x
  3. Step 3: Cross multiply
    7,130.26x = 9,839.98 × 3,986.44
  4. Step 4: Simplify right side
    7,130.26x = 39,226,489.87
  5. Step 5: Solve for x
    x = 39,226,489.87/7,130.26
  6. Step 6: Final answer
    x = 5,501.41

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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.