Home / 5,385.64-7,431.78-3,027.32

Finding the Fourth Proportional to 5,385.64, 7,431.78 and 3,027.32

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Solution

The fourth proportional to 5,385.64, 7,431.78 and 3,027.32 is: 4,177.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.64 : 7,431.78 = 3,027.32 : x
  2. Step 2: Convert to fraction form
    5,385.64/7,431.78 = 3,027.32/x
  3. Step 3: Cross multiply
    5,385.64x = 7,431.78 × 3,027.32
  4. Step 4: Simplify right side
    5,385.64x = 22,498,376.23
  5. Step 5: Solve for x
    x = 22,498,376.23/5,385.64
  6. Step 6: Final answer
    x = 4,177.47

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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.