Home / 4,977.69-6,869.24-2,739.62

Finding the Fourth Proportional to 4,977.69, 6,869.24 and 2,739.62

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Solution

The fourth proportional to 4,977.69, 6,869.24 and 2,739.62 is: 3,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.69 : 6,869.24 = 2,739.62 : x
  2. Step 2: Convert to fraction form
    4,977.69/6,869.24 = 2,739.62/x
  3. Step 3: Cross multiply
    4,977.69x = 6,869.24 × 2,739.62
  4. Step 4: Simplify right side
    4,977.69x = 18,819,059.24
  5. Step 5: Solve for x
    x = 18,819,059.24/4,977.69
  6. Step 6: Final answer
    x = 3,780.68

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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.