Home / 5,156.64-7,112.52-3,168.32

Finding the Fourth Proportional to 5,156.64, 7,112.52 and 3,168.32

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Solution

The fourth proportional to 5,156.64, 7,112.52 and 3,168.32 is: 4,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.64 : 7,112.52 = 3,168.32 : x
  2. Step 2: Convert to fraction form
    5,156.64/7,112.52 = 3,168.32/x
  3. Step 3: Cross multiply
    5,156.64x = 7,112.52 × 3,168.32
  4. Step 4: Simplify right side
    5,156.64x = 22,534,703.80
  5. Step 5: Solve for x
    x = 22,534,703.80/5,156.64
  6. Step 6: Final answer
    x = 4,370.04

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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.