Home / 1,996.38-2,754.57-1,210.62

Finding the Fourth Proportional to 1,996.38, 2,754.57 and 1,210.62

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Solution

The fourth proportional to 1,996.38, 2,754.57 and 1,210.62 is: 1,670.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.38 : 2,754.57 = 1,210.62 : x
  2. Step 2: Convert to fraction form
    1,996.38/2,754.57 = 1,210.62/x
  3. Step 3: Cross multiply
    1,996.38x = 2,754.57 × 1,210.62
  4. Step 4: Simplify right side
    1,996.38x = 3,334,737.53
  5. Step 5: Solve for x
    x = 3,334,737.53/1,996.38
  6. Step 6: Final answer
    x = 1,670.39

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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.