Home / 5,226.85-7,840.99-1,939.67

Finding the Fourth Proportional to 5,226.85, 7,840.99 and 1,939.67

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Solution

The fourth proportional to 5,226.85, 7,840.99 and 1,939.67 is: 2,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.85 : 7,840.99 = 1,939.67 : x
  2. Step 2: Convert to fraction form
    5,226.85/7,840.99 = 1,939.67/x
  3. Step 3: Cross multiply
    5,226.85x = 7,840.99 × 1,939.67
  4. Step 4: Simplify right side
    5,226.85x = 15,208,893.87
  5. Step 5: Solve for x
    x = 15,208,893.87/5,226.85
  6. Step 6: Final answer
    x = 2,909.77

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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.