Home / 4,870.10-7,305.60-1,947.80

Finding the Fourth Proportional to 4,870.10, 7,305.60 and 1,947.80

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Solution

The fourth proportional to 4,870.10, 7,305.60 and 1,947.80 is: 2,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.10 : 7,305.60 = 1,947.80 : x
  2. Step 2: Convert to fraction form
    4,870.10/7,305.60 = 1,947.80/x
  3. Step 3: Cross multiply
    4,870.10x = 7,305.60 × 1,947.80
  4. Step 4: Simplify right side
    4,870.10x = 14,229,847.68
  5. Step 5: Solve for x
    x = 14,229,847.68/4,870.10
  6. Step 6: Final answer
    x = 2,921.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.