Home / 2,201.63-3,038.15-1,317.92

Finding the Fourth Proportional to 2,201.63, 3,038.15 and 1,317.92

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Solution

The fourth proportional to 2,201.63, 3,038.15 and 1,317.92 is: 1,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.63 : 3,038.15 = 1,317.92 : x
  2. Step 2: Convert to fraction form
    2,201.63/3,038.15 = 1,317.92/x
  3. Step 3: Cross multiply
    2,201.63x = 3,038.15 × 1,317.92
  4. Step 4: Simplify right side
    2,201.63x = 4,004,038.65
  5. Step 5: Solve for x
    x = 4,004,038.65/2,201.63
  6. Step 6: Final answer
    x = 1,818.67

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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.