Home / 1,711.68-2,568.60-1,697.78

Finding the Fourth Proportional to 1,711.68, 2,568.60 and 1,697.78

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Solution

The fourth proportional to 1,711.68, 2,568.60 and 1,697.78 is: 2,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.68 : 2,568.60 = 1,697.78 : x
  2. Step 2: Convert to fraction form
    1,711.68/2,568.60 = 1,697.78/x
  3. Step 3: Cross multiply
    1,711.68x = 2,568.60 × 1,697.78
  4. Step 4: Simplify right side
    1,711.68x = 4,360,917.71
  5. Step 5: Solve for x
    x = 4,360,917.71/1,711.68
  6. Step 6: Final answer
    x = 2,547.74

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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.