Home / 5,455.28-8,181.02-1,558.64

Finding the Fourth Proportional to 5,455.28, 8,181.02 and 1,558.64

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Solution

The fourth proportional to 5,455.28, 8,181.02 and 1,558.64 is: 2,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.28 : 8,181.02 = 1,558.64 : x
  2. Step 2: Convert to fraction form
    5,455.28/8,181.02 = 1,558.64/x
  3. Step 3: Cross multiply
    5,455.28x = 8,181.02 × 1,558.64
  4. Step 4: Simplify right side
    5,455.28x = 12,751,265.01
  5. Step 5: Solve for x
    x = 12,751,265.01/5,455.28
  6. Step 6: Final answer
    x = 2,337.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.