Home / 5,245.91-7,869.02-1,958.35

Finding the Fourth Proportional to 5,245.91, 7,869.02 and 1,958.35

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Solution

The fourth proportional to 5,245.91, 7,869.02 and 1,958.35 is: 2,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.91 : 7,869.02 = 1,958.35 : x
  2. Step 2: Convert to fraction form
    5,245.91/7,869.02 = 1,958.35/x
  3. Step 3: Cross multiply
    5,245.91x = 7,869.02 × 1,958.35
  4. Step 4: Simplify right side
    5,245.91x = 15,410,319.26
  5. Step 5: Solve for x
    x = 15,410,319.26/5,245.91
  6. Step 6: Final answer
    x = 2,937.58

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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.