Home / 1,521.16-2,100.22-1,166.44

Finding the Fourth Proportional to 1,521.16, 2,100.22 and 1,166.44

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Solution

The fourth proportional to 1,521.16, 2,100.22 and 1,166.44 is: 1,610.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.16 : 2,100.22 = 1,166.44 : x
  2. Step 2: Convert to fraction form
    1,521.16/2,100.22 = 1,166.44/x
  3. Step 3: Cross multiply
    1,521.16x = 2,100.22 × 1,166.44
  4. Step 4: Simplify right side
    1,521.16x = 2,449,780.62
  5. Step 5: Solve for x
    x = 2,449,780.62/1,521.16
  6. Step 6: Final answer
    x = 1,610.47

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1.5x scale

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.