Home / 2,137.85-2,950.28-1,180.75

Finding the Fourth Proportional to 2,137.85, 2,950.28 and 1,180.75

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Solution

The fourth proportional to 2,137.85, 2,950.28 and 1,180.75 is: 1,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.85 : 2,950.28 = 1,180.75 : x
  2. Step 2: Convert to fraction form
    2,137.85/2,950.28 = 1,180.75/x
  3. Step 3: Cross multiply
    2,137.85x = 2,950.28 × 1,180.75
  4. Step 4: Simplify right side
    2,137.85x = 3,483,537.21
  5. Step 5: Solve for x
    x = 3,483,537.21/2,137.85
  6. Step 6: Final answer
    x = 1,629.46

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,138.85, 2,951.66 and 1,181.75
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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.