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Finding the Fourth Proportional to 3,303.54, 4,955.29 and 838.35

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Solution

The fourth proportional to 3,303.54, 4,955.29 and 838.35 is: 1,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,303.54 : 4,955.29 = 838.35 : x
  2. Step 2: Convert to fraction form
    3,303.54/4,955.29 = 838.35/x
  3. Step 3: Cross multiply
    3,303.54x = 4,955.29 × 838.35
  4. Step 4: Simplify right side
    3,303.54x = 4,154,242.60
  5. Step 5: Solve for x
    x = 4,154,242.60/3,303.54
  6. Step 6: Final answer
    x = 1,257.51

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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.