Home / 5,245.44-7,865.61-1,913.58

Finding the Fourth Proportional to 5,245.44, 7,865.61 and 1,913.58

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Solution

The fourth proportional to 5,245.44, 7,865.61 and 1,913.58 is: 2,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.44 : 7,865.61 = 1,913.58 : x
  2. Step 2: Convert to fraction form
    5,245.44/7,865.61 = 1,913.58/x
  3. Step 3: Cross multiply
    5,245.44x = 7,865.61 × 1,913.58
  4. Step 4: Simplify right side
    5,245.44x = 15,051,473.98
  5. Step 5: Solve for x
    x = 15,051,473.98/5,245.44
  6. Step 6: Final answer
    x = 2,869.44

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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.