Home / 2,208.06-3,312.90-1,038.42

Finding the Fourth Proportional to 2,208.06, 3,312.90 and 1,038.42

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Solution

The fourth proportional to 2,208.06, 3,312.90 and 1,038.42 is: 1,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.06 : 3,312.90 = 1,038.42 : x
  2. Step 2: Convert to fraction form
    2,208.06/3,312.90 = 1,038.42/x
  3. Step 3: Cross multiply
    2,208.06x = 3,312.90 × 1,038.42
  4. Step 4: Simplify right side
    2,208.06x = 3,440,181.62
  5. Step 5: Solve for x
    x = 3,440,181.62/2,208.06
  6. Step 6: Final answer
    x = 1,558.01

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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.