Home / 2,307.29-3,183.74-1,312.64

Finding the Fourth Proportional to 2,307.29, 3,183.74 and 1,312.64

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Solution

The fourth proportional to 2,307.29, 3,183.74 and 1,312.64 is: 1,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.29 : 3,183.74 = 1,312.64 : x
  2. Step 2: Convert to fraction form
    2,307.29/3,183.74 = 1,312.64/x
  3. Step 3: Cross multiply
    2,307.29x = 3,183.74 × 1,312.64
  4. Step 4: Simplify right side
    2,307.29x = 4,179,098.85
  5. Step 5: Solve for x
    x = 4,179,098.85/2,307.29
  6. Step 6: Final answer
    x = 1,811.26

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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.