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Finding the Fourth Proportional to 7,285.53, 10,928.40 and 2,841.47

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Solution

The fourth proportional to 7,285.53, 10,928.40 and 2,841.47 is: 4,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.53 : 10,928.40 = 2,841.47 : x
  2. Step 2: Convert to fraction form
    7,285.53/10,928.40 = 2,841.47/x
  3. Step 3: Cross multiply
    7,285.53x = 10,928.40 × 2,841.47
  4. Step 4: Simplify right side
    7,285.53x = 31,052,720.75
  5. Step 5: Solve for x
    x = 31,052,720.75/7,285.53
  6. Step 6: Final answer
    x = 4,262.25

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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.