Home / 7,178.64-9,906.32-4,035.04

Finding the Fourth Proportional to 7,178.64, 9,906.32 and 4,035.04

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Solution

The fourth proportional to 7,178.64, 9,906.32 and 4,035.04 is: 5,568.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.64 : 9,906.32 = 4,035.04 : x
  2. Step 2: Convert to fraction form
    7,178.64/9,906.32 = 4,035.04/x
  3. Step 3: Cross multiply
    7,178.64x = 9,906.32 × 4,035.04
  4. Step 4: Simplify right side
    7,178.64x = 39,972,397.45
  5. Step 5: Solve for x
    x = 39,972,397.45/7,178.64
  6. Step 6: Final answer
    x = 5,568.24

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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.