Home / 5,187.22-7,776.51-1,899.70

Finding the Fourth Proportional to 5,187.22, 7,776.51 and 1,899.70

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Solution

The fourth proportional to 5,187.22, 7,776.51 and 1,899.70 is: 2,847.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.22 : 7,776.51 = 1,899.70 : x
  2. Step 2: Convert to fraction form
    5,187.22/7,776.51 = 1,899.70/x
  3. Step 3: Cross multiply
    5,187.22x = 7,776.51 × 1,899.70
  4. Step 4: Simplify right side
    5,187.22x = 14,773,036.05
  5. Step 5: Solve for x
    x = 14,773,036.05/5,187.22
  6. Step 6: Final answer
    x = 2,847.97

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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.