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Finding the Fourth Proportional to 3,303.57, 4,955.37 and 838.39

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Solution

The fourth proportional to 3,303.57, 4,955.37 and 838.39 is: 1,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,303.57 : 4,955.37 = 838.39 : x
  2. Step 2: Convert to fraction form
    3,303.57/4,955.37 = 838.39/x
  3. Step 3: Cross multiply
    3,303.57x = 4,955.37 × 838.39
  4. Step 4: Simplify right side
    3,303.57x = 4,154,520.27
  5. Step 5: Solve for x
    x = 4,154,520.27/3,303.57
  6. Step 6: Final answer
    x = 1,257.59

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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.