Home / 5,111.26-7,665.98-1,412.90

Finding the Fourth Proportional to 5,111.26, 7,665.98 and 1,412.90

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Solution

The fourth proportional to 5,111.26, 7,665.98 and 1,412.90 is: 2,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.26 : 7,665.98 = 1,412.90 : x
  2. Step 2: Convert to fraction form
    5,111.26/7,665.98 = 1,412.90/x
  3. Step 3: Cross multiply
    5,111.26x = 7,665.98 × 1,412.90
  4. Step 4: Simplify right side
    5,111.26x = 10,831,263.14
  5. Step 5: Solve for x
    x = 10,831,263.14/5,111.26
  6. Step 6: Final answer
    x = 2,119.10

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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.