Home / 5,438.79-8,147.21-3,585.33

Finding the Fourth Proportional to 5,438.79, 8,147.21 and 3,585.33

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Solution

The fourth proportional to 5,438.79, 8,147.21 and 3,585.33 is: 5,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.79 : 8,147.21 = 3,585.33 : x
  2. Step 2: Convert to fraction form
    5,438.79/8,147.21 = 3,585.33/x
  3. Step 3: Cross multiply
    5,438.79x = 8,147.21 × 3,585.33
  4. Step 4: Simplify right side
    5,438.79x = 29,210,418.50
  5. Step 5: Solve for x
    x = 29,210,418.50/5,438.79
  6. Step 6: Final answer
    x = 5,370.76

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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.