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Finding the Fourth Proportional to 3,336.77, 5,005.08 and 871.58

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Solution

The fourth proportional to 3,336.77, 5,005.08 and 871.58 is: 1,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.77 : 5,005.08 = 871.58 : x
  2. Step 2: Convert to fraction form
    3,336.77/5,005.08 = 871.58/x
  3. Step 3: Cross multiply
    3,336.77x = 5,005.08 × 871.58
  4. Step 4: Simplify right side
    3,336.77x = 4,362,302.60
  5. Step 5: Solve for x
    x = 4,362,302.60/3,336.77
  6. Step 6: Final answer
    x = 1,307.34

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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.