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Finding the Fourth Proportional to 4,970.72, 7,447.44 and 2,658.08

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Solution

The fourth proportional to 4,970.72, 7,447.44 and 2,658.08 is: 3,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.72 : 7,447.44 = 2,658.08 : x
  2. Step 2: Convert to fraction form
    4,970.72/7,447.44 = 2,658.08/x
  3. Step 3: Cross multiply
    4,970.72x = 7,447.44 × 2,658.08
  4. Step 4: Simplify right side
    4,970.72x = 19,795,891.32
  5. Step 5: Solve for x
    x = 19,795,891.32/4,970.72
  6. Step 6: Final answer
    x = 3,982.50

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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.