Home / 5,422.04-8,134.32-2,090.78

Finding the Fourth Proportional to 5,422.04, 8,134.32 and 2,090.78

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Solution

The fourth proportional to 5,422.04, 8,134.32 and 2,090.78 is: 3,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.04 : 8,134.32 = 2,090.78 : x
  2. Step 2: Convert to fraction form
    5,422.04/8,134.32 = 2,090.78/x
  3. Step 3: Cross multiply
    5,422.04x = 8,134.32 × 2,090.78
  4. Step 4: Simplify right side
    5,422.04x = 17,007,071.24
  5. Step 5: Solve for x
    x = 17,007,071.24/5,422.04
  6. Step 6: Final answer
    x = 3,136.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.