Home / 5,536.32-7,638.60-3,178.32

Finding the Fourth Proportional to 5,536.32, 7,638.60 and 3,178.32

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Solution

The fourth proportional to 5,536.32, 7,638.60 and 3,178.32 is: 4,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,536.32 : 7,638.60 = 3,178.32 : x
  2. Step 2: Convert to fraction form
    5,536.32/7,638.60 = 3,178.32/x
  3. Step 3: Cross multiply
    5,536.32x = 7,638.60 × 3,178.32
  4. Step 4: Simplify right side
    5,536.32x = 24,277,915.15
  5. Step 5: Solve for x
    x = 24,277,915.15/5,536.32
  6. Step 6: Final answer
    x = 4,385.21

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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.