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Finding the Fourth Proportional to 2,004.95, 3,008.16 and 688.83

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Solution

The fourth proportional to 2,004.95, 3,008.16 and 688.83 is: 1,033.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.95 : 3,008.16 = 688.83 : x
  2. Step 2: Convert to fraction form
    2,004.95/3,008.16 = 688.83/x
  3. Step 3: Cross multiply
    2,004.95x = 3,008.16 × 688.83
  4. Step 4: Simplify right side
    2,004.95x = 2,072,110.85
  5. Step 5: Solve for x
    x = 2,072,110.85/2,004.95
  6. Step 6: Final answer
    x = 1,033.50

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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.