Home / 2,153.65-3,224.69-1,369.40

Finding the Fourth Proportional to 2,153.65, 3,224.69 and 1,369.40

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Solution

The fourth proportional to 2,153.65, 3,224.69 and 1,369.40 is: 2,050.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.65 : 3,224.69 = 1,369.40 : x
  2. Step 2: Convert to fraction form
    2,153.65/3,224.69 = 1,369.40/x
  3. Step 3: Cross multiply
    2,153.65x = 3,224.69 × 1,369.40
  4. Step 4: Simplify right side
    2,153.65x = 4,415,890.49
  5. Step 5: Solve for x
    x = 4,415,890.49/2,153.65
  6. Step 6: Final answer
    x = 2,050.42

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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.