Home / 4,078.04-6,119.15-1,998

Finding the Fourth Proportional to 4,078.04, 6,119.15 and 1,998

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Solution

The fourth proportional to 4,078.04, 6,119.15 and 1,998 is: 2,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.04 : 6,119.15 = 1,998 : x
  2. Step 2: Convert to fraction form
    4,078.04/6,119.15 = 1,998/x
  3. Step 3: Cross multiply
    4,078.04x = 6,119.15 × 1,998
  4. Step 4: Simplify right side
    4,078.04x = 12,226,051.71
  5. Step 5: Solve for x
    x = 12,226,051.71/4,078.04
  6. Step 6: Final answer
    x = 2,998.03

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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.