Home / 3,689.37-5,090.31-2,197.55

Finding the Fourth Proportional to 3,689.37, 5,090.31 and 2,197.55

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Solution

The fourth proportional to 3,689.37, 5,090.31 and 2,197.55 is: 3,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.37 : 5,090.31 = 2,197.55 : x
  2. Step 2: Convert to fraction form
    3,689.37/5,090.31 = 2,197.55/x
  3. Step 3: Cross multiply
    3,689.37x = 5,090.31 × 2,197.55
  4. Step 4: Simplify right side
    3,689.37x = 11,186,223.47
  5. Step 5: Solve for x
    x = 11,186,223.47/3,689.37
  6. Step 6: Final answer
    x = 3,032.01

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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.