Home / 3,095.80-4,272-1,916.68

Finding the Fourth Proportional to 3,095.80, 4,272 and 1,916.68

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Solution

The fourth proportional to 3,095.80, 4,272 and 1,916.68 is: 2,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.80 : 4,272 = 1,916.68 : x
  2. Step 2: Convert to fraction form
    3,095.80/4,272 = 1,916.68/x
  3. Step 3: Cross multiply
    3,095.80x = 4,272 × 1,916.68
  4. Step 4: Simplify right side
    3,095.80x = 8,188,056.96
  5. Step 5: Solve for x
    x = 8,188,056.96/3,095.80
  6. Step 6: Final answer
    x = 2,644.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.