Home / 2,114.66-2,919.21-1,230.14

Finding the Fourth Proportional to 2,114.66, 2,919.21 and 1,230.14

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Solution

The fourth proportional to 2,114.66, 2,919.21 and 1,230.14 is: 1,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.66 : 2,919.21 = 1,230.14 : x
  2. Step 2: Convert to fraction form
    2,114.66/2,919.21 = 1,230.14/x
  3. Step 3: Cross multiply
    2,114.66x = 2,919.21 × 1,230.14
  4. Step 4: Simplify right side
    2,114.66x = 3,591,036.99
  5. Step 5: Solve for x
    x = 3,591,036.99/2,114.66
  6. Step 6: Final answer
    x = 1,698.16

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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.