Home / 3,370.08-5,052.78-1,420.68

Finding the Fourth Proportional to 3,370.08, 5,052.78 and 1,420.68

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Solution

The fourth proportional to 3,370.08, 5,052.78 and 1,420.68 is: 2,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.08 : 5,052.78 = 1,420.68 : x
  2. Step 2: Convert to fraction form
    3,370.08/5,052.78 = 1,420.68/x
  3. Step 3: Cross multiply
    3,370.08x = 5,052.78 × 1,420.68
  4. Step 4: Simplify right side
    3,370.08x = 7,178,383.49
  5. Step 5: Solve for x
    x = 7,178,383.49/3,370.08
  6. Step 6: Final answer
    x = 2,130.03

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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.