Home / 7,728.21-10,664.91-4,371.03

Finding the Fourth Proportional to 7,728.21, 10,664.91 and 4,371.03

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Solution

The fourth proportional to 7,728.21, 10,664.91 and 4,371.03 is: 6,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.21 : 10,664.91 = 4,371.03 : x
  2. Step 2: Convert to fraction form
    7,728.21/10,664.91 = 4,371.03/x
  3. Step 3: Cross multiply
    7,728.21x = 10,664.91 × 4,371.03
  4. Step 4: Simplify right side
    7,728.21x = 46,616,641.56
  5. Step 5: Solve for x
    x = 46,616,641.56/7,728.21
  6. Step 6: Final answer
    x = 6,032.01

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1.5x scale

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.