Home / 7,529.64-10,389.92-4,172.29

Finding the Fourth Proportional to 7,529.64, 10,389.92 and 4,172.29

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Solution

The fourth proportional to 7,529.64, 10,389.92 and 4,172.29 is: 5,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.64 : 10,389.92 = 4,172.29 : x
  2. Step 2: Convert to fraction form
    7,529.64/10,389.92 = 4,172.29/x
  3. Step 3: Cross multiply
    7,529.64x = 10,389.92 × 4,172.29
  4. Step 4: Simplify right side
    7,529.64x = 43,349,712.48
  5. Step 5: Solve for x
    x = 43,349,712.48/7,529.64
  6. Step 6: Final answer
    x = 5,757.21

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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.