Home / 2,390.15-3,297.83-1,947.35

Finding the Fourth Proportional to 2,390.15, 3,297.83 and 1,947.35

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Solution

The fourth proportional to 2,390.15, 3,297.83 and 1,947.35 is: 2,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.15 : 3,297.83 = 1,947.35 : x
  2. Step 2: Convert to fraction form
    2,390.15/3,297.83 = 1,947.35/x
  3. Step 3: Cross multiply
    2,390.15x = 3,297.83 × 1,947.35
  4. Step 4: Simplify right side
    2,390.15x = 6,422,003.02
  5. Step 5: Solve for x
    x = 6,422,003.02/2,390.15
  6. Step 6: Final answer
    x = 2,686.87

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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.