Home / 3,311.69-4,569.41-1,913.63

Finding the Fourth Proportional to 3,311.69, 4,569.41 and 1,913.63

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Solution

The fourth proportional to 3,311.69, 4,569.41 and 1,913.63 is: 2,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.69 : 4,569.41 = 1,913.63 : x
  2. Step 2: Convert to fraction form
    3,311.69/4,569.41 = 1,913.63/x
  3. Step 3: Cross multiply
    3,311.69x = 4,569.41 × 1,913.63
  4. Step 4: Simplify right side
    3,311.69x = 8,744,142.00
  5. Step 5: Solve for x
    x = 8,744,142.00/3,311.69
  6. Step 6: Final answer
    x = 2,640.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.