Home / 6,185.70-9,278.55-1,803.60

Finding the Fourth Proportional to 6,185.70, 9,278.55 and 1,803.60

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Solution

The fourth proportional to 6,185.70, 9,278.55 and 1,803.60 is: 2,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,185.70 : 9,278.55 = 1,803.60 : x
  2. Step 2: Convert to fraction form
    6,185.70/9,278.55 = 1,803.60/x
  3. Step 3: Cross multiply
    6,185.70x = 9,278.55 × 1,803.60
  4. Step 4: Simplify right side
    6,185.70x = 16,734,792.78
  5. Step 5: Solve for x
    x = 16,734,792.78/6,185.70
  6. Step 6: Final answer
    x = 2,705.40

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Double scale
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Similar ratio
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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.