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Finding the Fourth Proportional to 3,235.81, 4,465.05 and 1,819.30

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Solution

The fourth proportional to 3,235.81, 4,465.05 and 1,819.30 is: 2,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.81 : 4,465.05 = 1,819.30 : x
  2. Step 2: Convert to fraction form
    3,235.81/4,465.05 = 1,819.30/x
  3. Step 3: Cross multiply
    3,235.81x = 4,465.05 × 1,819.30
  4. Step 4: Simplify right side
    3,235.81x = 8,123,265.47
  5. Step 5: Solve for x
    x = 8,123,265.47/3,235.81
  6. Step 6: Final answer
    x = 2,510.43

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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.