Home / 4,192.11-6,288.70-1,269.90

Finding the Fourth Proportional to 4,192.11, 6,288.70 and 1,269.90

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Solution

The fourth proportional to 4,192.11, 6,288.70 and 1,269.90 is: 1,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.11 : 6,288.70 = 1,269.90 : x
  2. Step 2: Convert to fraction form
    4,192.11/6,288.70 = 1,269.90/x
  3. Step 3: Cross multiply
    4,192.11x = 6,288.70 × 1,269.90
  4. Step 4: Simplify right side
    4,192.11x = 7,985,985.51
  5. Step 5: Solve for x
    x = 7,985,985.51/4,192.11
  6. Step 6: Final answer
    x = 1,905.01

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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.