Home / 1,731.83-2,390.09-1,173.46

Finding the Fourth Proportional to 1,731.83, 2,390.09 and 1,173.46

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Solution

The fourth proportional to 1,731.83, 2,390.09 and 1,173.46 is: 1,619.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.83 : 2,390.09 = 1,173.46 : x
  2. Step 2: Convert to fraction form
    1,731.83/2,390.09 = 1,173.46/x
  3. Step 3: Cross multiply
    1,731.83x = 2,390.09 × 1,173.46
  4. Step 4: Simplify right side
    1,731.83x = 2,804,685.92
  5. Step 5: Solve for x
    x = 2,804,685.92/1,731.83
  6. Step 6: Final answer
    x = 1,619.49

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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.