Home / 7,274.83-10,038.42-4,087.70

Finding the Fourth Proportional to 7,274.83, 10,038.42 and 4,087.70

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Solution

The fourth proportional to 7,274.83, 10,038.42 and 4,087.70 is: 5,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.83 : 10,038.42 = 4,087.70 : x
  2. Step 2: Convert to fraction form
    7,274.83/10,038.42 = 4,087.70/x
  3. Step 3: Cross multiply
    7,274.83x = 10,038.42 × 4,087.70
  4. Step 4: Simplify right side
    7,274.83x = 41,034,049.43
  5. Step 5: Solve for x
    x = 41,034,049.43/7,274.83
  6. Step 6: Final answer
    x = 5,640.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.