Home / 5,186.48-7,778.32-1,899.59

Finding the Fourth Proportional to 5,186.48, 7,778.32 and 1,899.59

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Solution

The fourth proportional to 5,186.48, 7,778.32 and 1,899.59 is: 2,848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.48 : 7,778.32 = 1,899.59 : x
  2. Step 2: Convert to fraction form
    5,186.48/7,778.32 = 1,899.59/x
  3. Step 3: Cross multiply
    5,186.48x = 7,778.32 × 1,899.59
  4. Step 4: Simplify right side
    5,186.48x = 14,775,575.25
  5. Step 5: Solve for x
    x = 14,775,575.25/5,186.48
  6. Step 6: Final answer
    x = 2,848.87

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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.