Home / 7,162.83-10,749.11-2,779.72

Finding the Fourth Proportional to 7,162.83, 10,749.11 and 2,779.72

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Solution

The fourth proportional to 7,162.83, 10,749.11 and 2,779.72 is: 4,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.83 : 10,749.11 = 2,779.72 : x
  2. Step 2: Convert to fraction form
    7,162.83/10,749.11 = 2,779.72/x
  3. Step 3: Cross multiply
    7,162.83x = 10,749.11 × 2,779.72
  4. Step 4: Simplify right side
    7,162.83x = 29,879,475.28
  5. Step 5: Solve for x
    x = 29,879,475.28/7,162.83
  6. Step 6: Final answer
    x = 4,171.46

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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.