Home / 3,311.49-4,569.84-1,819.38

Finding the Fourth Proportional to 3,311.49, 4,569.84 and 1,819.38

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Solution

The fourth proportional to 3,311.49, 4,569.84 and 1,819.38 is: 2,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.49 : 4,569.84 = 1,819.38 : x
  2. Step 2: Convert to fraction form
    3,311.49/4,569.84 = 1,819.38/x
  3. Step 3: Cross multiply
    3,311.49x = 4,569.84 × 1,819.38
  4. Step 4: Simplify right side
    3,311.49x = 8,314,275.50
  5. Step 5: Solve for x
    x = 8,314,275.50/3,311.49
  6. Step 6: Final answer
    x = 2,510.74

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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.