Home / 1,742.74-2,604.04-1,317.79

Finding the Fourth Proportional to 1,742.74, 2,604.04 and 1,317.79

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Solution

The fourth proportional to 1,742.74, 2,604.04 and 1,317.79 is: 1,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.74 : 2,604.04 = 1,317.79 : x
  2. Step 2: Convert to fraction form
    1,742.74/2,604.04 = 1,317.79/x
  3. Step 3: Cross multiply
    1,742.74x = 2,604.04 × 1,317.79
  4. Step 4: Simplify right side
    1,742.74x = 3,431,577.87
  5. Step 5: Solve for x
    x = 3,431,577.87/1,742.74
  6. Step 6: Final answer
    x = 1,969.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.