Home / 2,130.62-3,197.75-1,630.45

Finding the Fourth Proportional to 2,130.62, 3,197.75 and 1,630.45

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Solution

The fourth proportional to 2,130.62, 3,197.75 and 1,630.45 is: 2,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.62 : 3,197.75 = 1,630.45 : x
  2. Step 2: Convert to fraction form
    2,130.62/3,197.75 = 1,630.45/x
  3. Step 3: Cross multiply
    2,130.62x = 3,197.75 × 1,630.45
  4. Step 4: Simplify right side
    2,130.62x = 5,213,771.49
  5. Step 5: Solve for x
    x = 5,213,771.49/2,130.62
  6. Step 6: Final answer
    x = 2,447.07

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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.