Home / 2,212.25-3,315.64-1,116.93

Finding the Fourth Proportional to 2,212.25, 3,315.64 and 1,116.93

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Solution

The fourth proportional to 2,212.25, 3,315.64 and 1,116.93 is: 1,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.25 : 3,315.64 = 1,116.93 : x
  2. Step 2: Convert to fraction form
    2,212.25/3,315.64 = 1,116.93/x
  3. Step 3: Cross multiply
    2,212.25x = 3,315.64 × 1,116.93
  4. Step 4: Simplify right side
    2,212.25x = 3,703,334.99
  5. Step 5: Solve for x
    x = 3,703,334.99/2,212.25
  6. Step 6: Final answer
    x = 1,674.01

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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.