Home / 5,639.58-8,459.43-3,418.92

Finding the Fourth Proportional to 5,639.58, 8,459.43 and 3,418.92

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Solution

The fourth proportional to 5,639.58, 8,459.43 and 3,418.92 is: 5,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.58 : 8,459.43 = 3,418.92 : x
  2. Step 2: Convert to fraction form
    5,639.58/8,459.43 = 3,418.92/x
  3. Step 3: Cross multiply
    5,639.58x = 8,459.43 × 3,418.92
  4. Step 4: Simplify right side
    5,639.58x = 28,922,114.42
  5. Step 5: Solve for x
    x = 28,922,114.42/5,639.58
  6. Step 6: Final answer
    x = 5,128.42

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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.