Home / 1,669.14-2,301.62-1,420.07

Finding the Fourth Proportional to 1,669.14, 2,301.62 and 1,420.07

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Solution

The fourth proportional to 1,669.14, 2,301.62 and 1,420.07 is: 1,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.14 : 2,301.62 = 1,420.07 : x
  2. Step 2: Convert to fraction form
    1,669.14/2,301.62 = 1,420.07/x
  3. Step 3: Cross multiply
    1,669.14x = 2,301.62 × 1,420.07
  4. Step 4: Simplify right side
    1,669.14x = 3,268,442.90
  5. Step 5: Solve for x
    x = 3,268,442.90/1,669.14
  6. Step 6: Final answer
    x = 1,958.16

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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.