Home / 7,130.51-9,839.22-3,943.37

Finding the Fourth Proportional to 7,130.51, 9,839.22 and 3,943.37

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Solution

The fourth proportional to 7,130.51, 9,839.22 and 3,943.37 is: 5,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.51 : 9,839.22 = 3,943.37 : x
  2. Step 2: Convert to fraction form
    7,130.51/9,839.22 = 3,943.37/x
  3. Step 3: Cross multiply
    7,130.51x = 9,839.22 × 3,943.37
  4. Step 4: Simplify right side
    7,130.51x = 38,799,635.78
  5. Step 5: Solve for x
    x = 38,799,635.78/7,130.51
  6. Step 6: Final answer
    x = 5,441.36

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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.