Home / 1,899.29-2,847.19-666.02

Finding the Fourth Proportional to 1,899.29, 2,847.19 and 666.02

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Solution

The fourth proportional to 1,899.29, 2,847.19 and 666.02 is: 998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.29 : 2,847.19 = 666.02 : x
  2. Step 2: Convert to fraction form
    1,899.29/2,847.19 = 666.02/x
  3. Step 3: Cross multiply
    1,899.29x = 2,847.19 × 666.02
  4. Step 4: Simplify right side
    1,899.29x = 1,896,295.46
  5. Step 5: Solve for x
    x = 1,896,295.46/1,899.29
  6. Step 6: Final answer
    x = 998.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.