Home / 3,639.02-5,456.55-1,298.66

Finding the Fourth Proportional to 3,639.02, 5,456.55 and 1,298.66

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Solution

The fourth proportional to 3,639.02, 5,456.55 and 1,298.66 is: 1,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.02 : 5,456.55 = 1,298.66 : x
  2. Step 2: Convert to fraction form
    3,639.02/5,456.55 = 1,298.66/x
  3. Step 3: Cross multiply
    3,639.02x = 5,456.55 × 1,298.66
  4. Step 4: Simplify right side
    3,639.02x = 7,086,203.22
  5. Step 5: Solve for x
    x = 7,086,203.22/3,639.02
  6. Step 6: Final answer
    x = 1,947.28

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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.