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Finding the Fourth Proportional to 5,225.50, 7,211.07 and 2,894.45

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Solution

The fourth proportional to 5,225.50, 7,211.07 and 2,894.45 is: 3,994.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.50 : 7,211.07 = 2,894.45 : x
  2. Step 2: Convert to fraction form
    5,225.50/7,211.07 = 2,894.45/x
  3. Step 3: Cross multiply
    5,225.50x = 7,211.07 × 2,894.45
  4. Step 4: Simplify right side
    5,225.50x = 20,872,081.56
  5. Step 5: Solve for x
    x = 20,872,081.56/5,225.50
  6. Step 6: Final answer
    x = 3,994.27

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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.