Home / 5,142.88-7,096.80-2,904.64

Finding the Fourth Proportional to 5,142.88, 7,096.80 and 2,904.64

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Solution

The fourth proportional to 5,142.88, 7,096.80 and 2,904.64 is: 4,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.88 : 7,096.80 = 2,904.64 : x
  2. Step 2: Convert to fraction form
    5,142.88/7,096.80 = 2,904.64/x
  3. Step 3: Cross multiply
    5,142.88x = 7,096.80 × 2,904.64
  4. Step 4: Simplify right side
    5,142.88x = 20,613,649.15
  5. Step 5: Solve for x
    x = 20,613,649.15/5,142.88
  6. Step 6: Final answer
    x = 4,008.19

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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.