Home / 2,938.02-4,405.64-1,705.82

Finding the Fourth Proportional to 2,938.02, 4,405.64 and 1,705.82

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Solution

The fourth proportional to 2,938.02, 4,405.64 and 1,705.82 is: 2,557.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.02 : 4,405.64 = 1,705.82 : x
  2. Step 2: Convert to fraction form
    2,938.02/4,405.64 = 1,705.82/x
  3. Step 3: Cross multiply
    2,938.02x = 4,405.64 × 1,705.82
  4. Step 4: Simplify right side
    2,938.02x = 7,515,198.27
  5. Step 5: Solve for x
    x = 7,515,198.27/2,938.02
  6. Step 6: Final answer
    x = 2,557.91

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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.