Home / 5,245.07-7,865.58-2,124.28

Finding the Fourth Proportional to 5,245.07, 7,865.58 and 2,124.28

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Solution

The fourth proportional to 5,245.07, 7,865.58 and 2,124.28 is: 3,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.07 : 7,865.58 = 2,124.28 : x
  2. Step 2: Convert to fraction form
    5,245.07/7,865.58 = 2,124.28/x
  3. Step 3: Cross multiply
    5,245.07x = 7,865.58 × 2,124.28
  4. Step 4: Simplify right side
    5,245.07x = 16,708,654.95
  5. Step 5: Solve for x
    x = 16,708,654.95/5,245.07
  6. Step 6: Final answer
    x = 3,185.59

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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.