Home / 5,298.35-7,311.96-2,940.35

Finding the Fourth Proportional to 5,298.35, 7,311.96 and 2,940.35

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Solution

The fourth proportional to 5,298.35, 7,311.96 and 2,940.35 is: 4,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.35 : 7,311.96 = 2,940.35 : x
  2. Step 2: Convert to fraction form
    5,298.35/7,311.96 = 2,940.35/x
  3. Step 3: Cross multiply
    5,298.35x = 7,311.96 × 2,940.35
  4. Step 4: Simplify right side
    5,298.35x = 21,499,685.03
  5. Step 5: Solve for x
    x = 21,499,685.03/5,298.35
  6. Step 6: Final answer
    x = 4,057.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.