Home / 1,887.21-2,832.62-1,158.21

Finding the Fourth Proportional to 1,887.21, 2,832.62 and 1,158.21

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Solution

The fourth proportional to 1,887.21, 2,832.62 and 1,158.21 is: 1,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.21 : 2,832.62 = 1,158.21 : x
  2. Step 2: Convert to fraction form
    1,887.21/2,832.62 = 1,158.21/x
  3. Step 3: Cross multiply
    1,887.21x = 2,832.62 × 1,158.21
  4. Step 4: Simplify right side
    1,887.21x = 3,280,763.02
  5. Step 5: Solve for x
    x = 3,280,763.02/1,887.21
  6. Step 6: Final answer
    x = 1,738.42

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1.5x scale

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.