Home / 5,182.58-7,772.76-1,672.90

Finding the Fourth Proportional to 5,182.58, 7,772.76 and 1,672.90

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Solution

The fourth proportional to 5,182.58, 7,772.76 and 1,672.90 is: 2,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.58 : 7,772.76 = 1,672.90 : x
  2. Step 2: Convert to fraction form
    5,182.58/7,772.76 = 1,672.90/x
  3. Step 3: Cross multiply
    5,182.58x = 7,772.76 × 1,672.90
  4. Step 4: Simplify right side
    5,182.58x = 13,003,050.20
  5. Step 5: Solve for x
    x = 13,003,050.20/5,182.58
  6. Step 6: Final answer
    x = 2,508.99

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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.