Home / 2,207.16-3,045.80-1,212.42

Finding the Fourth Proportional to 2,207.16, 3,045.80 and 1,212.42

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Solution

The fourth proportional to 2,207.16, 3,045.80 and 1,212.42 is: 1,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.16 : 3,045.80 = 1,212.42 : x
  2. Step 2: Convert to fraction form
    2,207.16/3,045.80 = 1,212.42/x
  3. Step 3: Cross multiply
    2,207.16x = 3,045.80 × 1,212.42
  4. Step 4: Simplify right side
    2,207.16x = 3,692,782.77
  5. Step 5: Solve for x
    x = 3,692,782.77/2,207.16
  6. Step 6: Final answer
    x = 1,673.09

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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.