Home / 3,407.31-5,106.92-1,455.39

Finding the Fourth Proportional to 3,407.31, 5,106.92 and 1,455.39

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Solution

The fourth proportional to 3,407.31, 5,106.92 and 1,455.39 is: 2,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.31 : 5,106.92 = 1,455.39 : x
  2. Step 2: Convert to fraction form
    3,407.31/5,106.92 = 1,455.39/x
  3. Step 3: Cross multiply
    3,407.31x = 5,106.92 × 1,455.39
  4. Step 4: Simplify right side
    3,407.31x = 7,432,553.02
  5. Step 5: Solve for x
    x = 7,432,553.02/3,407.31
  6. Step 6: Final answer
    x = 2,181.36

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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.