Home / 4,977.94-6,869.30-2,739.39

Finding the Fourth Proportional to 4,977.94, 6,869.30 and 2,739.39

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Solution

The fourth proportional to 4,977.94, 6,869.30 and 2,739.39 is: 3,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.94 : 6,869.30 = 2,739.39 : x
  2. Step 2: Convert to fraction form
    4,977.94/6,869.30 = 2,739.39/x
  3. Step 3: Cross multiply
    4,977.94x = 6,869.30 × 2,739.39
  4. Step 4: Simplify right side
    4,977.94x = 18,817,643.68
  5. Step 5: Solve for x
    x = 18,817,643.68/4,977.94
  6. Step 6: Final answer
    x = 3,780.21

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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.