Home / 5,431.55-8,148.86-2,800.97

Finding the Fourth Proportional to 5,431.55, 8,148.86 and 2,800.97

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Solution

The fourth proportional to 5,431.55, 8,148.86 and 2,800.97 is: 4,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.55 : 8,148.86 = 2,800.97 : x
  2. Step 2: Convert to fraction form
    5,431.55/8,148.86 = 2,800.97/x
  3. Step 3: Cross multiply
    5,431.55x = 8,148.86 × 2,800.97
  4. Step 4: Simplify right side
    5,431.55x = 22,824,657.65
  5. Step 5: Solve for x
    x = 22,824,657.65/5,431.55
  6. Step 6: Final answer
    x = 4,202.24

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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.