Home / 5,188.22-7,778.01-1,900.70

Finding the Fourth Proportional to 5,188.22, 7,778.01 and 1,900.70

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Solution

The fourth proportional to 5,188.22, 7,778.01 and 1,900.70 is: 2,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.22 : 7,778.01 = 1,900.70 : x
  2. Step 2: Convert to fraction form
    5,188.22/7,778.01 = 1,900.70/x
  3. Step 3: Cross multiply
    5,188.22x = 7,778.01 × 1,900.70
  4. Step 4: Simplify right side
    5,188.22x = 14,783,663.61
  5. Step 5: Solve for x
    x = 14,783,663.61/5,188.22
  6. Step 6: Final answer
    x = 2,849.47

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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.