Home / 7,280.25-10,047.56-4,485.75

Finding the Fourth Proportional to 7,280.25, 10,047.56 and 4,485.75

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Solution

The fourth proportional to 7,280.25, 10,047.56 and 4,485.75 is: 6,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.25 : 10,047.56 = 4,485.75 : x
  2. Step 2: Convert to fraction form
    7,280.25/10,047.56 = 4,485.75/x
  3. Step 3: Cross multiply
    7,280.25x = 10,047.56 × 4,485.75
  4. Step 4: Simplify right side
    7,280.25x = 45,070,819.84
  5. Step 5: Solve for x
    x = 45,070,819.84/7,280.25
  6. Step 6: Final answer
    x = 6,190.83

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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.