Home / 2,201.85-3,038.51-1,317.15

Finding the Fourth Proportional to 2,201.85, 3,038.51 and 1,317.15

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Solution

The fourth proportional to 2,201.85, 3,038.51 and 1,317.15 is: 1,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.85 : 3,038.51 = 1,317.15 : x
  2. Step 2: Convert to fraction form
    2,201.85/3,038.51 = 1,317.15/x
  3. Step 3: Cross multiply
    2,201.85x = 3,038.51 × 1,317.15
  4. Step 4: Simplify right side
    2,201.85x = 4,002,166.86
  5. Step 5: Solve for x
    x = 4,002,166.86/2,201.85
  6. Step 6: Final answer
    x = 1,817.64

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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.