Home / 4,119.51-6,172.08-3,430.61

Finding the Fourth Proportional to 4,119.51, 6,172.08 and 3,430.61

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Solution

The fourth proportional to 4,119.51, 6,172.08 and 3,430.61 is: 5,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.51 : 6,172.08 = 3,430.61 : x
  2. Step 2: Convert to fraction form
    4,119.51/6,172.08 = 3,430.61/x
  3. Step 3: Cross multiply
    4,119.51x = 6,172.08 × 3,430.61
  4. Step 4: Simplify right side
    4,119.51x = 21,173,999.37
  5. Step 5: Solve for x
    x = 21,173,999.37/4,119.51
  6. Step 6: Final answer
    x = 5,139.93

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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.