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Finding the Fourth Proportional to 3,381.86, 5,072.74 and 1,302.32

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Solution

The fourth proportional to 3,381.86, 5,072.74 and 1,302.32 is: 1,953.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.86 : 5,072.74 = 1,302.32 : x
  2. Step 2: Convert to fraction form
    3,381.86/5,072.74 = 1,302.32/x
  3. Step 3: Cross multiply
    3,381.86x = 5,072.74 × 1,302.32
  4. Step 4: Simplify right side
    3,381.86x = 6,606,340.18
  5. Step 5: Solve for x
    x = 6,606,340.18/3,381.86
  6. Step 6: Final answer
    x = 1,953.46

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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.