Home / 2,307.96-3,181.68-1,808.64

Finding the Fourth Proportional to 2,307.96, 3,181.68 and 1,808.64

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Solution

The fourth proportional to 2,307.96, 3,181.68 and 1,808.64 is: 2,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.96 : 3,181.68 = 1,808.64 : x
  2. Step 2: Convert to fraction form
    2,307.96/3,181.68 = 1,808.64/x
  3. Step 3: Cross multiply
    2,307.96x = 3,181.68 × 1,808.64
  4. Step 4: Simplify right side
    2,307.96x = 5,754,513.72
  5. Step 5: Solve for x
    x = 5,754,513.72/2,307.96
  6. Step 6: Final answer
    x = 2,493.33

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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.