Home / 5,775.21-8,661.92-1,614.78

Finding the Fourth Proportional to 5,775.21, 8,661.92 and 1,614.78

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Solution

The fourth proportional to 5,775.21, 8,661.92 and 1,614.78 is: 2,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.21 : 8,661.92 = 1,614.78 : x
  2. Step 2: Convert to fraction form
    5,775.21/8,661.92 = 1,614.78/x
  3. Step 3: Cross multiply
    5,775.21x = 8,661.92 × 1,614.78
  4. Step 4: Simplify right side
    5,775.21x = 13,987,087.10
  5. Step 5: Solve for x
    x = 13,987,087.10/5,775.21
  6. Step 6: Final answer
    x = 2,421.92

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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.