Home / 1,698.23-2,556.74-1,330.01

Finding the Fourth Proportional to 1,698.23, 2,556.74 and 1,330.01

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Solution

The fourth proportional to 1,698.23, 2,556.74 and 1,330.01 is: 2,002.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.23 : 2,556.74 = 1,330.01 : x
  2. Step 2: Convert to fraction form
    1,698.23/2,556.74 = 1,330.01/x
  3. Step 3: Cross multiply
    1,698.23x = 2,556.74 × 1,330.01
  4. Step 4: Simplify right side
    1,698.23x = 3,400,489.90
  5. Step 5: Solve for x
    x = 3,400,489.90/1,698.23
  6. Step 6: Final answer
    x = 2,002.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.