Home / 2,568.59-3,544.63-1,389.65

Finding the Fourth Proportional to 2,568.59, 3,544.63 and 1,389.65

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Solution

The fourth proportional to 2,568.59, 3,544.63 and 1,389.65 is: 1,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.59 : 3,544.63 = 1,389.65 : x
  2. Step 2: Convert to fraction form
    2,568.59/3,544.63 = 1,389.65/x
  3. Step 3: Cross multiply
    2,568.59x = 3,544.63 × 1,389.65
  4. Step 4: Simplify right side
    2,568.59x = 4,925,795.08
  5. Step 5: Solve for x
    x = 4,925,795.08/2,568.59
  6. Step 6: Final answer
    x = 1,917.71

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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.