Home / 6,421.04-9,629.89-2,721.36

Finding the Fourth Proportional to 6,421.04, 9,629.89 and 2,721.36

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Solution

The fourth proportional to 6,421.04, 9,629.89 and 2,721.36 is: 4,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.04 : 9,629.89 = 2,721.36 : x
  2. Step 2: Convert to fraction form
    6,421.04/9,629.89 = 2,721.36/x
  3. Step 3: Cross multiply
    6,421.04x = 9,629.89 × 2,721.36
  4. Step 4: Simplify right side
    6,421.04x = 26,206,426.76
  5. Step 5: Solve for x
    x = 26,206,426.76/6,421.04
  6. Step 6: Final answer
    x = 4,081.34

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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.