Home / 5,187.22-7,778.94-1,899.34

Finding the Fourth Proportional to 5,187.22, 7,778.94 and 1,899.34

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Solution

The fourth proportional to 5,187.22, 7,778.94 and 1,899.34 is: 2,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.22 : 7,778.94 = 1,899.34 : x
  2. Step 2: Convert to fraction form
    5,187.22/7,778.94 = 1,899.34/x
  3. Step 3: Cross multiply
    5,187.22x = 7,778.94 × 1,899.34
  4. Step 4: Simplify right side
    5,187.22x = 14,774,851.90
  5. Step 5: Solve for x
    x = 14,774,851.90/5,187.22
  6. Step 6: Final answer
    x = 2,848.32

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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.