Home / 2,211.04-3,317.48-749.40

Finding the Fourth Proportional to 2,211.04, 3,317.48 and 749.40

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Solution

The fourth proportional to 2,211.04, 3,317.48 and 749.40 is: 1,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.04 : 3,317.48 = 749.40 : x
  2. Step 2: Convert to fraction form
    2,211.04/3,317.48 = 749.40/x
  3. Step 3: Cross multiply
    2,211.04x = 3,317.48 × 749.40
  4. Step 4: Simplify right side
    2,211.04x = 2,486,119.51
  5. Step 5: Solve for x
    x = 2,486,119.51/2,211.04
  6. Step 6: Final answer
    x = 1,124.41

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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.