Home / 6,142.80-8,476.08-3,453.48

Finding the Fourth Proportional to 6,142.80, 8,476.08 and 3,453.48

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Solution

The fourth proportional to 6,142.80, 8,476.08 and 3,453.48 is: 4,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.80 : 8,476.08 = 3,453.48 : x
  2. Step 2: Convert to fraction form
    6,142.80/8,476.08 = 3,453.48/x
  3. Step 3: Cross multiply
    6,142.80x = 8,476.08 × 3,453.48
  4. Step 4: Simplify right side
    6,142.80x = 29,271,972.76
  5. Step 5: Solve for x
    x = 29,271,972.76/6,142.80
  6. Step 6: Final answer
    x = 4,765.25

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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.