Home / 1,913.24-2,869.83-1,263.80

Finding the Fourth Proportional to 1,913.24, 2,869.83 and 1,263.80

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Solution

The fourth proportional to 1,913.24, 2,869.83 and 1,263.80 is: 1,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.24 : 2,869.83 = 1,263.80 : x
  2. Step 2: Convert to fraction form
    1,913.24/2,869.83 = 1,263.80/x
  3. Step 3: Cross multiply
    1,913.24x = 2,869.83 × 1,263.80
  4. Step 4: Simplify right side
    1,913.24x = 3,626,891.15
  5. Step 5: Solve for x
    x = 3,626,891.15/1,913.24
  6. Step 6: Final answer
    x = 1,895.68

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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.