Home / 4,989.97-7,484.94-1,291.89

Finding the Fourth Proportional to 4,989.97, 7,484.94 and 1,291.89

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Solution

The fourth proportional to 4,989.97, 7,484.94 and 1,291.89 is: 1,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.97 : 7,484.94 = 1,291.89 : x
  2. Step 2: Convert to fraction form
    4,989.97/7,484.94 = 1,291.89/x
  3. Step 3: Cross multiply
    4,989.97x = 7,484.94 × 1,291.89
  4. Step 4: Simplify right side
    4,989.97x = 9,669,719.14
  5. Step 5: Solve for x
    x = 9,669,719.14/4,989.97
  6. Step 6: Final answer
    x = 1,937.83

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1.5x scale

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.