Home / 6,987.46-10,478.40-2,826.67

Finding the Fourth Proportional to 6,987.46, 10,478.40 and 2,826.67

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Solution

The fourth proportional to 6,987.46, 10,478.40 and 2,826.67 is: 4,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.46 : 10,478.40 = 2,826.67 : x
  2. Step 2: Convert to fraction form
    6,987.46/10,478.40 = 2,826.67/x
  3. Step 3: Cross multiply
    6,987.46x = 10,478.40 × 2,826.67
  4. Step 4: Simplify right side
    6,987.46x = 29,618,978.93
  5. Step 5: Solve for x
    x = 29,618,978.93/6,987.46
  6. Step 6: Final answer
    x = 4,238.88

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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.