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Finding the Fourth Proportional to 3,435.23, 5,152.80 and 838.19

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Solution

The fourth proportional to 3,435.23, 5,152.80 and 838.19 is: 1,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.23 : 5,152.80 = 838.19 : x
  2. Step 2: Convert to fraction form
    3,435.23/5,152.80 = 838.19/x
  3. Step 3: Cross multiply
    3,435.23x = 5,152.80 × 838.19
  4. Step 4: Simplify right side
    3,435.23x = 4,319,025.43
  5. Step 5: Solve for x
    x = 4,319,025.43/3,435.23
  6. Step 6: Final answer
    x = 1,257.27

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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.