Home / 6,412.56-9,621-3,125.04

Finding the Fourth Proportional to 6,412.56, 9,621 and 3,125.04

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Solution

The fourth proportional to 6,412.56, 9,621 and 3,125.04 is: 4,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.56 : 9,621 = 3,125.04 : x
  2. Step 2: Convert to fraction form
    6,412.56/9,621 = 3,125.04/x
  3. Step 3: Cross multiply
    6,412.56x = 9,621 × 3,125.04
  4. Step 4: Simplify right side
    6,412.56x = 30,066,009.84
  5. Step 5: Solve for x
    x = 30,066,009.84/6,412.56
  6. Step 6: Final answer
    x = 4,688.61

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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.