Home / 1,537.12-2,121.52-1,443.34

Finding the Fourth Proportional to 1,537.12, 2,121.52 and 1,443.34

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Solution

The fourth proportional to 1,537.12, 2,121.52 and 1,443.34 is: 1,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.12 : 2,121.52 = 1,443.34 : x
  2. Step 2: Convert to fraction form
    1,537.12/2,121.52 = 1,443.34/x
  3. Step 3: Cross multiply
    1,537.12x = 2,121.52 × 1,443.34
  4. Step 4: Simplify right side
    1,537.12x = 3,062,074.68
  5. Step 5: Solve for x
    x = 3,062,074.68/1,537.12
  6. Step 6: Final answer
    x = 1,992.09

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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.