Home / 5,090.27-7,012.41-4,188.12

Finding the Fourth Proportional to 5,090.27, 7,012.41 and 4,188.12

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Solution

The fourth proportional to 5,090.27, 7,012.41 and 4,188.12 is: 5,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.27 : 7,012.41 = 4,188.12 : x
  2. Step 2: Convert to fraction form
    5,090.27/7,012.41 = 4,188.12/x
  3. Step 3: Cross multiply
    5,090.27x = 7,012.41 × 4,188.12
  4. Step 4: Simplify right side
    5,090.27x = 29,368,814.57
  5. Step 5: Solve for x
    x = 29,368,814.57/5,090.27
  6. Step 6: Final answer
    x = 5,769.60

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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.