Home / 1,905.12-2,629.68-1,464.48

Finding the Fourth Proportional to 1,905.12, 2,629.68 and 1,464.48

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Solution

The fourth proportional to 1,905.12, 2,629.68 and 1,464.48 is: 2,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.12 : 2,629.68 = 1,464.48 : x
  2. Step 2: Convert to fraction form
    1,905.12/2,629.68 = 1,464.48/x
  3. Step 3: Cross multiply
    1,905.12x = 2,629.68 × 1,464.48
  4. Step 4: Simplify right side
    1,905.12x = 3,851,113.77
  5. Step 5: Solve for x
    x = 3,851,113.77/1,905.12
  6. Step 6: Final answer
    x = 2,021.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.