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Finding the Fourth Proportional to 7,188.99, 10,783.53 and 2,508.98

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Solution

The fourth proportional to 7,188.99, 10,783.53 and 2,508.98 is: 3,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.99 : 10,783.53 = 2,508.98 : x
  2. Step 2: Convert to fraction form
    7,188.99/10,783.53 = 2,508.98/x
  3. Step 3: Cross multiply
    7,188.99x = 10,783.53 × 2,508.98
  4. Step 4: Simplify right side
    7,188.99x = 27,055,607.18
  5. Step 5: Solve for x
    x = 27,055,607.18/7,188.99
  6. Step 6: Final answer
    x = 3,763.48

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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.