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Finding the Fourth Proportional to 5,458.89, 8,188.34 and 1,354.89

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Solution

The fourth proportional to 5,458.89, 8,188.34 and 1,354.89 is: 2,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.89 : 8,188.34 = 1,354.89 : x
  2. Step 2: Convert to fraction form
    5,458.89/8,188.34 = 1,354.89/x
  3. Step 3: Cross multiply
    5,458.89x = 8,188.34 × 1,354.89
  4. Step 4: Simplify right side
    5,458.89x = 11,094,293.21
  5. Step 5: Solve for x
    x = 11,094,293.21/5,458.89
  6. Step 6: Final answer
    x = 2,032.34

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1.5x scale

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.