Home / 1,731.44-2,390.36-1,143.01

Finding the Fourth Proportional to 1,731.44, 2,390.36 and 1,143.01

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Solution

The fourth proportional to 1,731.44, 2,390.36 and 1,143.01 is: 1,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.44 : 2,390.36 = 1,143.01 : x
  2. Step 2: Convert to fraction form
    1,731.44/2,390.36 = 1,143.01/x
  3. Step 3: Cross multiply
    1,731.44x = 2,390.36 × 1,143.01
  4. Step 4: Simplify right side
    1,731.44x = 2,732,209.09
  5. Step 5: Solve for x
    x = 2,732,209.09/1,731.44
  6. Step 6: Final answer
    x = 1,578.00

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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.