Home / 2,211.24-3,312.91-1,478.59

Finding the Fourth Proportional to 2,211.24, 3,312.91 and 1,478.59

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Solution

The fourth proportional to 2,211.24, 3,312.91 and 1,478.59 is: 2,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.24 : 3,312.91 = 1,478.59 : x
  2. Step 2: Convert to fraction form
    2,211.24/3,312.91 = 1,478.59/x
  3. Step 3: Cross multiply
    2,211.24x = 3,312.91 × 1,478.59
  4. Step 4: Simplify right side
    2,211.24x = 4,898,435.60
  5. Step 5: Solve for x
    x = 4,898,435.60/2,211.24
  6. Step 6: Final answer
    x = 2,215.24

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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.