Home / 4,947.50-6,827.55-2,739.50

Finding the Fourth Proportional to 4,947.50, 6,827.55 and 2,739.50

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Solution

The fourth proportional to 4,947.50, 6,827.55 and 2,739.50 is: 3,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.50 : 6,827.55 = 2,739.50 : x
  2. Step 2: Convert to fraction form
    4,947.50/6,827.55 = 2,739.50/x
  3. Step 3: Cross multiply
    4,947.50x = 6,827.55 × 2,739.50
  4. Step 4: Simplify right side
    4,947.50x = 18,704,073.23
  5. Step 5: Solve for x
    x = 18,704,073.23/4,947.50
  6. Step 6: Final answer
    x = 3,780.51

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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.