Home / 5,090.16-7,620.30-3,862.38

Finding the Fourth Proportional to 5,090.16, 7,620.30 and 3,862.38

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Solution

The fourth proportional to 5,090.16, 7,620.30 and 3,862.38 is: 5,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.16 : 7,620.30 = 3,862.38 : x
  2. Step 2: Convert to fraction form
    5,090.16/7,620.30 = 3,862.38/x
  3. Step 3: Cross multiply
    5,090.16x = 7,620.30 × 3,862.38
  4. Step 4: Simplify right side
    5,090.16x = 29,432,494.31
  5. Step 5: Solve for x
    x = 29,432,494.31/5,090.16
  6. Step 6: Final answer
    x = 5,782.23

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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.