Home / 2,208.18-3,045.96-1,421.94

Finding the Fourth Proportional to 2,208.18, 3,045.96 and 1,421.94

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Solution

The fourth proportional to 2,208.18, 3,045.96 and 1,421.94 is: 1,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.18 : 3,045.96 = 1,421.94 : x
  2. Step 2: Convert to fraction form
    2,208.18/3,045.96 = 1,421.94/x
  3. Step 3: Cross multiply
    2,208.18x = 3,045.96 × 1,421.94
  4. Step 4: Simplify right side
    2,208.18x = 4,331,172.36
  5. Step 5: Solve for x
    x = 4,331,172.36/2,208.18
  6. Step 6: Final answer
    x = 1,961.42

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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.