Home / 3,332.40-4,991.31-2,158.32

Finding the Fourth Proportional to 3,332.40, 4,991.31 and 2,158.32

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Solution

The fourth proportional to 3,332.40, 4,991.31 and 2,158.32 is: 3,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.40 : 4,991.31 = 2,158.32 : x
  2. Step 2: Convert to fraction form
    3,332.40/4,991.31 = 2,158.32/x
  3. Step 3: Cross multiply
    3,332.40x = 4,991.31 × 2,158.32
  4. Step 4: Simplify right side
    3,332.40x = 10,772,844.20
  5. Step 5: Solve for x
    x = 10,772,844.20/3,332.40
  6. Step 6: Final answer
    x = 3,232.76

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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.