Home / 1,719.93-2,579.97-1,138.65

Finding the Fourth Proportional to 1,719.93, 2,579.97 and 1,138.65

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Solution

The fourth proportional to 1,719.93, 2,579.97 and 1,138.65 is: 1,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.93 : 2,579.97 = 1,138.65 : x
  2. Step 2: Convert to fraction form
    1,719.93/2,579.97 = 1,138.65/x
  3. Step 3: Cross multiply
    1,719.93x = 2,579.97 × 1,138.65
  4. Step 4: Simplify right side
    1,719.93x = 2,937,682.84
  5. Step 5: Solve for x
    x = 2,937,682.84/1,719.93
  6. Step 6: Final answer
    x = 1,708.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.