Home / 7,130.16-9,839.34-3,943.25

Finding the Fourth Proportional to 7,130.16, 9,839.34 and 3,943.25

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Solution

The fourth proportional to 7,130.16, 9,839.34 and 3,943.25 is: 5,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.16 : 9,839.34 = 3,943.25 : x
  2. Step 2: Convert to fraction form
    7,130.16/9,839.34 = 3,943.25/x
  3. Step 3: Cross multiply
    7,130.16x = 9,839.34 × 3,943.25
  4. Step 4: Simplify right side
    7,130.16x = 38,798,928.26
  5. Step 5: Solve for x
    x = 38,798,928.26/7,130.16
  6. Step 6: Final answer
    x = 5,441.52

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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.