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Finding the Fourth Proportional to 4,998.90, 7,488.45 and 4,383.30

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Solution

The fourth proportional to 4,998.90, 7,488.45 and 4,383.30 is: 6,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.90 : 7,488.45 = 4,383.30 : x
  2. Step 2: Convert to fraction form
    4,998.90/7,488.45 = 4,383.30/x
  3. Step 3: Cross multiply
    4,998.90x = 7,488.45 × 4,383.30
  4. Step 4: Simplify right side
    4,998.90x = 32,824,122.89
  5. Step 5: Solve for x
    x = 32,824,122.89/4,998.90
  6. Step 6: Final answer
    x = 6,566.27

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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.