Home / 2,448.35-3,670.36-1,420.19

Finding the Fourth Proportional to 2,448.35, 3,670.36 and 1,420.19

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Solution

The fourth proportional to 2,448.35, 3,670.36 and 1,420.19 is: 2,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.35 : 3,670.36 = 1,420.19 : x
  2. Step 2: Convert to fraction form
    2,448.35/3,670.36 = 1,420.19/x
  3. Step 3: Cross multiply
    2,448.35x = 3,670.36 × 1,420.19
  4. Step 4: Simplify right side
    2,448.35x = 5,212,608.57
  5. Step 5: Solve for x
    x = 5,212,608.57/2,448.35
  6. Step 6: Final answer
    x = 2,129.03

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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.