Home / 7,130.06-9,839.49-3,986.24

Finding the Fourth Proportional to 7,130.06, 9,839.49 and 3,986.24

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Solution

The fourth proportional to 7,130.06, 9,839.49 and 3,986.24 is: 5,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.06 : 9,839.49 = 3,986.24 : x
  2. Step 2: Convert to fraction form
    7,130.06/9,839.49 = 3,986.24/x
  3. Step 3: Cross multiply
    7,130.06x = 9,839.49 × 3,986.24
  4. Step 4: Simplify right side
    7,130.06x = 39,222,519.42
  5. Step 5: Solve for x
    x = 39,222,519.42/7,130.06
  6. Step 6: Final answer
    x = 5,501.01

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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.