Home / 1,724.74-2,379.39-1,165.00

Finding the Fourth Proportional to 1,724.74, 2,379.39 and 1,165.00

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Solution

The fourth proportional to 1,724.74, 2,379.39 and 1,165.00 is: 1,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.74 : 2,379.39 = 1,165.00 : x
  2. Step 2: Convert to fraction form
    1,724.74/2,379.39 = 1,165.00/x
  3. Step 3: Cross multiply
    1,724.74x = 2,379.39 × 1,165.00
  4. Step 4: Simplify right side
    1,724.74x = 2,771,997.68
  5. Step 5: Solve for x
    x = 2,771,997.68/1,724.74
  6. Step 6: Final answer
    x = 1,607.20

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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.