Home / 4,977.63-6,869.30-2,739.65

Finding the Fourth Proportional to 4,977.63, 6,869.30 and 2,739.65

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Solution

The fourth proportional to 4,977.63, 6,869.30 and 2,739.65 is: 3,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.63 : 6,869.30 = 2,739.65 : x
  2. Step 2: Convert to fraction form
    4,977.63/6,869.30 = 2,739.65/x
  3. Step 3: Cross multiply
    4,977.63x = 6,869.30 × 2,739.65
  4. Step 4: Simplify right side
    4,977.63x = 18,819,429.70
  5. Step 5: Solve for x
    x = 18,819,429.70/4,977.63
  6. Step 6: Final answer
    x = 3,780.80

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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.