Home / 3,628.31-5,442.66-1,780.29

Finding the Fourth Proportional to 3,628.31, 5,442.66 and 1,780.29

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Solution

The fourth proportional to 3,628.31, 5,442.66 and 1,780.29 is: 2,670.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.31 : 5,442.66 = 1,780.29 : x
  2. Step 2: Convert to fraction form
    3,628.31/5,442.66 = 1,780.29/x
  3. Step 3: Cross multiply
    3,628.31x = 5,442.66 × 1,780.29
  4. Step 4: Simplify right side
    3,628.31x = 9,689,513.17
  5. Step 5: Solve for x
    x = 9,689,513.17/3,628.31
  6. Step 6: Final answer
    x = 2,670.53

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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.