Home / 5,111.22-7,053.26-3,125.10

Finding the Fourth Proportional to 5,111.22, 7,053.26 and 3,125.10

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Solution

The fourth proportional to 5,111.22, 7,053.26 and 3,125.10 is: 4,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.22 : 7,053.26 = 3,125.10 : x
  2. Step 2: Convert to fraction form
    5,111.22/7,053.26 = 3,125.10/x
  3. Step 3: Cross multiply
    5,111.22x = 7,053.26 × 3,125.10
  4. Step 4: Simplify right side
    5,111.22x = 22,042,142.83
  5. Step 5: Solve for x
    x = 22,042,142.83/5,111.22
  6. Step 6: Final answer
    x = 4,312.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.