Home / 4,977.87-6,870.50-2,853.73

Finding the Fourth Proportional to 4,977.87, 6,870.50 and 2,853.73

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Solution

The fourth proportional to 4,977.87, 6,870.50 and 2,853.73 is: 3,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.87 : 6,870.50 = 2,853.73 : x
  2. Step 2: Convert to fraction form
    4,977.87/6,870.50 = 2,853.73/x
  3. Step 3: Cross multiply
    4,977.87x = 6,870.50 × 2,853.73
  4. Step 4: Simplify right side
    4,977.87x = 19,606,551.97
  5. Step 5: Solve for x
    x = 19,606,551.97/4,977.87
  6. Step 6: Final answer
    x = 3,938.74

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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.