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Finding the Fourth Proportional to 5,354.70, 8,032.65 and 1,656.90

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Solution

The fourth proportional to 5,354.70, 8,032.65 and 1,656.90 is: 2,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.70 : 8,032.65 = 1,656.90 : x
  2. Step 2: Convert to fraction form
    5,354.70/8,032.65 = 1,656.90/x
  3. Step 3: Cross multiply
    5,354.70x = 8,032.65 × 1,656.90
  4. Step 4: Simplify right side
    5,354.70x = 13,309,297.79
  5. Step 5: Solve for x
    x = 13,309,297.79/5,354.70
  6. Step 6: Final answer
    x = 2,485.54

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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.