Home / 1,661.16-2,293.40-1,102.10

Finding the Fourth Proportional to 1,661.16, 2,293.40 and 1,102.10

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Solution

The fourth proportional to 1,661.16, 2,293.40 and 1,102.10 is: 1,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661.16 : 2,293.40 = 1,102.10 : x
  2. Step 2: Convert to fraction form
    1,661.16/2,293.40 = 1,102.10/x
  3. Step 3: Cross multiply
    1,661.16x = 2,293.40 × 1,102.10
  4. Step 4: Simplify right side
    1,661.16x = 2,527,556.14
  5. Step 5: Solve for x
    x = 2,527,556.14/1,661.16
  6. Step 6: Final answer
    x = 1,521.56

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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.