Home / 2,152.62-3,223.44-1,421.10

Finding the Fourth Proportional to 2,152.62, 3,223.44 and 1,421.10

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Solution

The fourth proportional to 2,152.62, 3,223.44 and 1,421.10 is: 2,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.62 : 3,223.44 = 1,421.10 : x
  2. Step 2: Convert to fraction form
    2,152.62/3,223.44 = 1,421.10/x
  3. Step 3: Cross multiply
    2,152.62x = 3,223.44 × 1,421.10
  4. Step 4: Simplify right side
    2,152.62x = 4,580,830.58
  5. Step 5: Solve for x
    x = 4,580,830.58/2,152.62
  6. Step 6: Final answer
    x = 2,128.03

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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.