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Finding the Fourth Proportional to 5,000.77, 7,500.46 and 1,491.31

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Solution

The fourth proportional to 5,000.77, 7,500.46 and 1,491.31 is: 2,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.77 : 7,500.46 = 1,491.31 : x
  2. Step 2: Convert to fraction form
    5,000.77/7,500.46 = 1,491.31/x
  3. Step 3: Cross multiply
    5,000.77x = 7,500.46 × 1,491.31
  4. Step 4: Simplify right side
    5,000.77x = 11,185,511.00
  5. Step 5: Solve for x
    x = 11,185,511.00/5,000.77
  6. Step 6: Final answer
    x = 2,236.76

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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.