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Finding the Fourth Proportional to 4,992.99, 7,487.10 and 1,705.20

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Solution

The fourth proportional to 4,992.99, 7,487.10 and 1,705.20 is: 2,556.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.99 : 7,487.10 = 1,705.20 : x
  2. Step 2: Convert to fraction form
    4,992.99/7,487.10 = 1,705.20/x
  3. Step 3: Cross multiply
    4,992.99x = 7,487.10 × 1,705.20
  4. Step 4: Simplify right side
    4,992.99x = 12,767,002.92
  5. Step 5: Solve for x
    x = 12,767,002.92/4,992.99
  6. Step 6: Final answer
    x = 2,556.99

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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.