Home / 1,719.68-2,568.74-1,690.52

Finding the Fourth Proportional to 1,719.68, 2,568.74 and 1,690.52

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Solution

The fourth proportional to 1,719.68, 2,568.74 and 1,690.52 is: 2,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.68 : 2,568.74 = 1,690.52 : x
  2. Step 2: Convert to fraction form
    1,719.68/2,568.74 = 1,690.52/x
  3. Step 3: Cross multiply
    1,719.68x = 2,568.74 × 1,690.52
  4. Step 4: Simplify right side
    1,719.68x = 4,342,485.05
  5. Step 5: Solve for x
    x = 4,342,485.05/1,719.68
  6. Step 6: Final answer
    x = 2,525.18

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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.