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Finding the Fourth Proportional to 3,133.57, 4,700.21 and 1,185.63

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Solution

The fourth proportional to 3,133.57, 4,700.21 and 1,185.63 is: 1,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.57 : 4,700.21 = 1,185.63 : x
  2. Step 2: Convert to fraction form
    3,133.57/4,700.21 = 1,185.63/x
  3. Step 3: Cross multiply
    3,133.57x = 4,700.21 × 1,185.63
  4. Step 4: Simplify right side
    3,133.57x = 5,572,709.98
  5. Step 5: Solve for x
    x = 5,572,709.98/3,133.57
  6. Step 6: Final answer
    x = 1,778.39

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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.