Home / 2,568.63-3,544.69-1,389.68

Finding the Fourth Proportional to 2,568.63, 3,544.69 and 1,389.68

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Solution

The fourth proportional to 2,568.63, 3,544.69 and 1,389.68 is: 1,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.63 : 3,544.69 = 1,389.68 : x
  2. Step 2: Convert to fraction form
    2,568.63/3,544.69 = 1,389.68/x
  3. Step 3: Cross multiply
    2,568.63x = 3,544.69 × 1,389.68
  4. Step 4: Simplify right side
    2,568.63x = 4,925,963.60
  5. Step 5: Solve for x
    x = 4,925,963.60/2,568.63
  6. Step 6: Final answer
    x = 1,917.74

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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.