Home / 4,078.16-6,118.15-1,305.00

Finding the Fourth Proportional to 4,078.16, 6,118.15 and 1,305.00

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Solution

The fourth proportional to 4,078.16, 6,118.15 and 1,305.00 is: 1,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.16 : 6,118.15 = 1,305.00 : x
  2. Step 2: Convert to fraction form
    4,078.16/6,118.15 = 1,305.00/x
  3. Step 3: Cross multiply
    4,078.16x = 6,118.15 × 1,305.00
  4. Step 4: Simplify right side
    4,078.16x = 7,984,156.68
  5. Step 5: Solve for x
    x = 7,984,156.68/4,078.16
  6. Step 6: Final answer
    x = 1,957.79

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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.