Home / 3,670.25-5,505.58-1,478.70

Finding the Fourth Proportional to 3,670.25, 5,505.58 and 1,478.70

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Solution

The fourth proportional to 3,670.25, 5,505.58 and 1,478.70 is: 2,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.25 : 5,505.58 = 1,478.70 : x
  2. Step 2: Convert to fraction form
    3,670.25/5,505.58 = 1,478.70/x
  3. Step 3: Cross multiply
    3,670.25x = 5,505.58 × 1,478.70
  4. Step 4: Simplify right side
    3,670.25x = 8,141,101.15
  5. Step 5: Solve for x
    x = 8,141,101.15/3,670.25
  6. Step 6: Final answer
    x = 2,218.13

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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.