Home / 5,187.96-7,769.73-2,547.21

Finding the Fourth Proportional to 5,187.96, 7,769.73 and 2,547.21

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Solution

The fourth proportional to 5,187.96, 7,769.73 and 2,547.21 is: 3,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.96 : 7,769.73 = 2,547.21 : x
  2. Step 2: Convert to fraction form
    5,187.96/7,769.73 = 2,547.21/x
  3. Step 3: Cross multiply
    5,187.96x = 7,769.73 × 2,547.21
  4. Step 4: Simplify right side
    5,187.96x = 19,791,133.95
  5. Step 5: Solve for x
    x = 19,791,133.95/5,187.96
  6. Step 6: Final answer
    x = 3,814.82

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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.