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Finding the Fourth Proportional to 2,007.08, 3,010.76 and 774.50

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Solution

The fourth proportional to 2,007.08, 3,010.76 and 774.50 is: 1,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.08 : 3,010.76 = 774.50 : x
  2. Step 2: Convert to fraction form
    2,007.08/3,010.76 = 774.50/x
  3. Step 3: Cross multiply
    2,007.08x = 3,010.76 × 774.50
  4. Step 4: Simplify right side
    2,007.08x = 2,331,829.75
  5. Step 5: Solve for x
    x = 2,331,829.75/2,007.08
  6. Step 6: Final answer
    x = 1,161.80

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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.