Home / 5,548.32-7,656.60-3,311.28

Finding the Fourth Proportional to 5,548.32, 7,656.60 and 3,311.28

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Solution

The fourth proportional to 5,548.32, 7,656.60 and 3,311.28 is: 4,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,548.32 : 7,656.60 = 3,311.28 : x
  2. Step 2: Convert to fraction form
    5,548.32/7,656.60 = 3,311.28/x
  3. Step 3: Cross multiply
    5,548.32x = 7,656.60 × 3,311.28
  4. Step 4: Simplify right side
    5,548.32x = 25,353,146.45
  5. Step 5: Solve for x
    x = 25,353,146.45/5,548.32
  6. Step 6: Final answer
    x = 4,569.52

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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.