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Finding the Fourth Proportional to 2,447.42, 3,670.36 and 803.59

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Solution

The fourth proportional to 2,447.42, 3,670.36 and 803.59 is: 1,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.42 : 3,670.36 = 803.59 : x
  2. Step 2: Convert to fraction form
    2,447.42/3,670.36 = 803.59/x
  3. Step 3: Cross multiply
    2,447.42x = 3,670.36 × 803.59
  4. Step 4: Simplify right side
    2,447.42x = 2,949,453.41
  5. Step 5: Solve for x
    x = 2,949,453.41/2,447.42
  6. Step 6: Final answer
    x = 1,205.13

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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.