Home / 1,536.19-2,122.64-1,207.23

Finding the Fourth Proportional to 1,536.19, 2,122.64 and 1,207.23

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Solution

The fourth proportional to 1,536.19, 2,122.64 and 1,207.23 is: 1,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.19 : 2,122.64 = 1,207.23 : x
  2. Step 2: Convert to fraction form
    1,536.19/2,122.64 = 1,207.23/x
  3. Step 3: Cross multiply
    1,536.19x = 2,122.64 × 1,207.23
  4. Step 4: Simplify right side
    1,536.19x = 2,562,514.69
  5. Step 5: Solve for x
    x = 2,562,514.69/1,536.19
  6. Step 6: Final answer
    x = 1,668.10

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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.