Home / 2,082.34-2,874.81-1,384.66

Finding the Fourth Proportional to 2,082.34, 2,874.81 and 1,384.66

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Solution

The fourth proportional to 2,082.34, 2,874.81 and 1,384.66 is: 1,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.34 : 2,874.81 = 1,384.66 : x
  2. Step 2: Convert to fraction form
    2,082.34/2,874.81 = 1,384.66/x
  3. Step 3: Cross multiply
    2,082.34x = 2,874.81 × 1,384.66
  4. Step 4: Simplify right side
    2,082.34x = 3,980,634.41
  5. Step 5: Solve for x
    x = 3,980,634.41/2,082.34
  6. Step 6: Final answer
    x = 1,911.62

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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.