Home / 5,548.96-7,638.72-4,219.36

Finding the Fourth Proportional to 5,548.96, 7,638.72 and 4,219.36

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Solution

The fourth proportional to 5,548.96, 7,638.72 and 4,219.36 is: 5,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,548.96 : 7,638.72 = 4,219.36 : x
  2. Step 2: Convert to fraction form
    5,548.96/7,638.72 = 4,219.36/x
  3. Step 3: Cross multiply
    5,548.96x = 7,638.72 × 4,219.36
  4. Step 4: Simplify right side
    5,548.96x = 32,230,509.62
  5. Step 5: Solve for x
    x = 32,230,509.62/5,548.96
  6. Step 6: Final answer
    x = 5,808.39

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Half scale
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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.