Home / 5,708.07-8,563.73-1,812.78

Finding the Fourth Proportional to 5,708.07, 8,563.73 and 1,812.78

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Solution

The fourth proportional to 5,708.07, 8,563.73 and 1,812.78 is: 2,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.07 : 8,563.73 = 1,812.78 : x
  2. Step 2: Convert to fraction form
    5,708.07/8,563.73 = 1,812.78/x
  3. Step 3: Cross multiply
    5,708.07x = 8,563.73 × 1,812.78
  4. Step 4: Simplify right side
    5,708.07x = 15,524,149.41
  5. Step 5: Solve for x
    x = 15,524,149.41/5,708.07
  6. Step 6: Final answer
    x = 2,719.68

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1.5x scale

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.