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Finding the Fourth Proportional to 5,369, 7,409.22 and 3,011.09

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Solution

The fourth proportional to 5,369, 7,409.22 and 3,011.09 is: 4,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369 : 7,409.22 = 3,011.09 : x
  2. Step 2: Convert to fraction form
    5,369/7,409.22 = 3,011.09/x
  3. Step 3: Cross multiply
    5,369x = 7,409.22 × 3,011.09
  4. Step 4: Simplify right side
    5,369x = 22,309,828.25
  5. Step 5: Solve for x
    x = 22,309,828.25/5,369
  6. Step 6: Final answer
    x = 4,155.30

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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.