Home / 5,078.04-7,007.65-2,839.89

Finding the Fourth Proportional to 5,078.04, 7,007.65 and 2,839.89

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Solution

The fourth proportional to 5,078.04, 7,007.65 and 2,839.89 is: 3,919.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.04 : 7,007.65 = 2,839.89 : x
  2. Step 2: Convert to fraction form
    5,078.04/7,007.65 = 2,839.89/x
  3. Step 3: Cross multiply
    5,078.04x = 7,007.65 × 2,839.89
  4. Step 4: Simplify right side
    5,078.04x = 19,900,940.96
  5. Step 5: Solve for x
    x = 19,900,940.96/5,078.04
  6. Step 6: Final answer
    x = 3,919.02

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1.5x scale

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.