Home / 2,308.08-3,185.08-1,313.36

Finding the Fourth Proportional to 2,308.08, 3,185.08 and 1,313.36

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Solution

The fourth proportional to 2,308.08, 3,185.08 and 1,313.36 is: 1,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.08 : 3,185.08 = 1,313.36 : x
  2. Step 2: Convert to fraction form
    2,308.08/3,185.08 = 1,313.36/x
  3. Step 3: Cross multiply
    2,308.08x = 3,185.08 × 1,313.36
  4. Step 4: Simplify right side
    2,308.08x = 4,183,156.67
  5. Step 5: Solve for x
    x = 4,183,156.67/2,308.08
  6. Step 6: Final answer
    x = 1,812.40

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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.