Home / 5,636.46-8,454.88-1,938.66

Finding the Fourth Proportional to 5,636.46, 8,454.88 and 1,938.66

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Solution

The fourth proportional to 5,636.46, 8,454.88 and 1,938.66 is: 2,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.46 : 8,454.88 = 1,938.66 : x
  2. Step 2: Convert to fraction form
    5,636.46/8,454.88 = 1,938.66/x
  3. Step 3: Cross multiply
    5,636.46x = 8,454.88 × 1,938.66
  4. Step 4: Simplify right side
    5,636.46x = 16,391,085.69
  5. Step 5: Solve for x
    x = 16,391,085.69/5,636.46
  6. Step 6: Final answer
    x = 2,908.05

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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.