Home / 3,008.40-4,155.52-2,318.32

Finding the Fourth Proportional to 3,008.40, 4,155.52 and 2,318.32

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Solution

The fourth proportional to 3,008.40, 4,155.52 and 2,318.32 is: 3,202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.40 : 4,155.52 = 2,318.32 : x
  2. Step 2: Convert to fraction form
    3,008.40/4,155.52 = 2,318.32/x
  3. Step 3: Cross multiply
    3,008.40x = 4,155.52 × 2,318.32
  4. Step 4: Simplify right side
    3,008.40x = 9,633,825.13
  5. Step 5: Solve for x
    x = 9,633,825.13/3,008.40
  6. Step 6: Final answer
    x = 3,202.31

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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.