Home / 5,972.88-8,242.68-3,615.12

Finding the Fourth Proportional to 5,972.88, 8,242.68 and 3,615.12

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Solution

The fourth proportional to 5,972.88, 8,242.68 and 3,615.12 is: 4,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,972.88 : 8,242.68 = 3,615.12 : x
  2. Step 2: Convert to fraction form
    5,972.88/8,242.68 = 3,615.12/x
  3. Step 3: Cross multiply
    5,972.88x = 8,242.68 × 3,615.12
  4. Step 4: Simplify right side
    5,972.88x = 29,798,277.32
  5. Step 5: Solve for x
    x = 29,798,277.32/5,972.88
  6. Step 6: Final answer
    x = 4,988.93

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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.