Home / 5,226.84-7,840.70-1,939.96

Finding the Fourth Proportional to 5,226.84, 7,840.70 and 1,939.96

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Solution

The fourth proportional to 5,226.84, 7,840.70 and 1,939.96 is: 2,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.84 : 7,840.70 = 1,939.96 : x
  2. Step 2: Convert to fraction form
    5,226.84/7,840.70 = 1,939.96/x
  3. Step 3: Cross multiply
    5,226.84x = 7,840.70 × 1,939.96
  4. Step 4: Simplify right side
    5,226.84x = 15,210,644.37
  5. Step 5: Solve for x
    x = 15,210,644.37/5,226.84
  6. Step 6: Final answer
    x = 2,910.10

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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.