Home / 4,977.98-6,869.65-2,739.79

Finding the Fourth Proportional to 4,977.98, 6,869.65 and 2,739.79

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Solution

The fourth proportional to 4,977.98, 6,869.65 and 2,739.79 is: 3,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.98 : 6,869.65 = 2,739.79 : x
  2. Step 2: Convert to fraction form
    4,977.98/6,869.65 = 2,739.79/x
  3. Step 3: Cross multiply
    4,977.98x = 6,869.65 × 2,739.79
  4. Step 4: Simplify right side
    4,977.98x = 18,821,364.03
  5. Step 5: Solve for x
    x = 18,821,364.03/4,977.98
  6. Step 6: Final answer
    x = 3,780.93

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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.