Home / 5,142.13-7,096.15-2,784.28

Finding the Fourth Proportional to 5,142.13, 7,096.15 and 2,784.28

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Solution

The fourth proportional to 5,142.13, 7,096.15 and 2,784.28 is: 3,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.13 : 7,096.15 = 2,784.28 : x
  2. Step 2: Convert to fraction form
    5,142.13/7,096.15 = 2,784.28/x
  3. Step 3: Cross multiply
    5,142.13x = 7,096.15 × 2,784.28
  4. Step 4: Simplify right side
    5,142.13x = 19,757,619.12
  5. Step 5: Solve for x
    x = 19,757,619.12/5,142.13
  6. Step 6: Final answer
    x = 3,842.30

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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.