Home / 3,691.32-5,090.40-3,133.32

Finding the Fourth Proportional to 3,691.32, 5,090.40 and 3,133.32

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Solution

The fourth proportional to 3,691.32, 5,090.40 and 3,133.32 is: 4,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.32 : 5,090.40 = 3,133.32 : x
  2. Step 2: Convert to fraction form
    3,691.32/5,090.40 = 3,133.32/x
  3. Step 3: Cross multiply
    3,691.32x = 5,090.40 × 3,133.32
  4. Step 4: Simplify right side
    3,691.32x = 15,949,852.13
  5. Step 5: Solve for x
    x = 15,949,852.13/3,691.32
  6. Step 6: Final answer
    x = 4,320.91

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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.