Home / 4,779.95-7,160.81-2,800.72

Finding the Fourth Proportional to 4,779.95, 7,160.81 and 2,800.72

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Solution

The fourth proportional to 4,779.95, 7,160.81 and 2,800.72 is: 4,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.95 : 7,160.81 = 2,800.72 : x
  2. Step 2: Convert to fraction form
    4,779.95/7,160.81 = 2,800.72/x
  3. Step 3: Cross multiply
    4,779.95x = 7,160.81 × 2,800.72
  4. Step 4: Simplify right side
    4,779.95x = 20,055,387.98
  5. Step 5: Solve for x
    x = 20,055,387.98/4,779.95
  6. Step 6: Final answer
    x = 4,195.73

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1.5x scale

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.