Home / 4,158.95-6,238.69-1,385.88

Finding the Fourth Proportional to 4,158.95, 6,238.69 and 1,385.88

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Solution

The fourth proportional to 4,158.95, 6,238.69 and 1,385.88 is: 2,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,158.95 : 6,238.69 = 1,385.88 : x
  2. Step 2: Convert to fraction form
    4,158.95/6,238.69 = 1,385.88/x
  3. Step 3: Cross multiply
    4,158.95x = 6,238.69 × 1,385.88
  4. Step 4: Simplify right side
    4,158.95x = 8,646,048.84
  5. Step 5: Solve for x
    x = 8,646,048.84/4,158.95
  6. Step 6: Final answer
    x = 2,078.90

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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.