Home / 5,110.30-7,665.81-1,412.25

Finding the Fourth Proportional to 5,110.30, 7,665.81 and 1,412.25

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Solution

The fourth proportional to 5,110.30, 7,665.81 and 1,412.25 is: 2,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.30 : 7,665.81 = 1,412.25 : x
  2. Step 2: Convert to fraction form
    5,110.30/7,665.81 = 1,412.25/x
  3. Step 3: Cross multiply
    5,110.30x = 7,665.81 × 1,412.25
  4. Step 4: Simplify right side
    5,110.30x = 10,826,040.17
  5. Step 5: Solve for x
    x = 10,826,040.17/5,110.30
  6. Step 6: Final answer
    x = 2,118.47

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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.