Home / 1,924.21-2,886.15-691.54

Finding the Fourth Proportional to 1,924.21, 2,886.15 and 691.54

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Solution

The fourth proportional to 1,924.21, 2,886.15 and 691.54 is: 1,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.21 : 2,886.15 = 691.54 : x
  2. Step 2: Convert to fraction form
    1,924.21/2,886.15 = 691.54/x
  3. Step 3: Cross multiply
    1,924.21x = 2,886.15 × 691.54
  4. Step 4: Simplify right side
    1,924.21x = 1,995,888.17
  5. Step 5: Solve for x
    x = 1,995,888.17/1,924.21
  6. Step 6: Final answer
    x = 1,037.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.