Home / 5,384.16-8,025.36-5,121

Finding the Fourth Proportional to 5,384.16, 8,025.36 and 5,121

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Solution

The fourth proportional to 5,384.16, 8,025.36 and 5,121 is: 7,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.16 : 8,025.36 = 5,121 : x
  2. Step 2: Convert to fraction form
    5,384.16/8,025.36 = 5,121/x
  3. Step 3: Cross multiply
    5,384.16x = 8,025.36 × 5,121
  4. Step 4: Simplify right side
    5,384.16x = 41,097,868.56
  5. Step 5: Solve for x
    x = 41,097,868.56/5,384.16
  6. Step 6: Final answer
    x = 7,633.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.