Home / 5,639.52-8,460.18-1,940.84

Finding the Fourth Proportional to 5,639.52, 8,460.18 and 1,940.84

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Solution

The fourth proportional to 5,639.52, 8,460.18 and 1,940.84 is: 2,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.52 : 8,460.18 = 1,940.84 : x
  2. Step 2: Convert to fraction form
    5,639.52/8,460.18 = 1,940.84/x
  3. Step 3: Cross multiply
    5,639.52x = 8,460.18 × 1,940.84
  4. Step 4: Simplify right side
    5,639.52x = 16,419,813.45
  5. Step 5: Solve for x
    x = 16,419,813.45/5,639.52
  6. Step 6: Final answer
    x = 2,911.56

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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.