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Finding the Fourth Proportional to 5,478.54, 7,560.45 and 2,994.54

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Solution

The fourth proportional to 5,478.54, 7,560.45 and 2,994.54 is: 4,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.54 : 7,560.45 = 2,994.54 : x
  2. Step 2: Convert to fraction form
    5,478.54/7,560.45 = 2,994.54/x
  3. Step 3: Cross multiply
    5,478.54x = 7,560.45 × 2,994.54
  4. Step 4: Simplify right side
    5,478.54x = 22,640,069.94
  5. Step 5: Solve for x
    x = 22,640,069.94/5,478.54
  6. Step 6: Final answer
    x = 4,132.50

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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.