Home / 2,545.21-3,817.76-1,245.77

Finding the Fourth Proportional to 2,545.21, 3,817.76 and 1,245.77

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Solution

The fourth proportional to 2,545.21, 3,817.76 and 1,245.77 is: 1,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.21 : 3,817.76 = 1,245.77 : x
  2. Step 2: Convert to fraction form
    2,545.21/3,817.76 = 1,245.77/x
  3. Step 3: Cross multiply
    2,545.21x = 3,817.76 × 1,245.77
  4. Step 4: Simplify right side
    2,545.21x = 4,756,050.88
  5. Step 5: Solve for x
    x = 4,756,050.88/2,545.21
  6. Step 6: Final answer
    x = 1,868.63

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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.