Home / 7,015.85-9,681.90-3,829.17

Finding the Fourth Proportional to 7,015.85, 9,681.90 and 3,829.17

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Solution

The fourth proportional to 7,015.85, 9,681.90 and 3,829.17 is: 5,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.85 : 9,681.90 = 3,829.17 : x
  2. Step 2: Convert to fraction form
    7,015.85/9,681.90 = 3,829.17/x
  3. Step 3: Cross multiply
    7,015.85x = 9,681.90 × 3,829.17
  4. Step 4: Simplify right side
    7,015.85x = 37,073,662.97
  5. Step 5: Solve for x
    x = 37,073,662.97/7,015.85
  6. Step 6: Final answer
    x = 5,284.27

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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.