Home / 1,889.82-2,606.04-1,143.66

Finding the Fourth Proportional to 1,889.82, 2,606.04 and 1,143.66

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Solution

The fourth proportional to 1,889.82, 2,606.04 and 1,143.66 is: 1,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.82 : 2,606.04 = 1,143.66 : x
  2. Step 2: Convert to fraction form
    1,889.82/2,606.04 = 1,143.66/x
  3. Step 3: Cross multiply
    1,889.82x = 2,606.04 × 1,143.66
  4. Step 4: Simplify right side
    1,889.82x = 2,980,423.71
  5. Step 5: Solve for x
    x = 2,980,423.71/1,889.82
  6. Step 6: Final answer
    x = 1,577.09

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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.