Home / 2,825.96-3,899.85-1,647.14

Finding the Fourth Proportional to 2,825.96, 3,899.85 and 1,647.14

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Solution

The fourth proportional to 2,825.96, 3,899.85 and 1,647.14 is: 2,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.96 : 3,899.85 = 1,647.14 : x
  2. Step 2: Convert to fraction form
    2,825.96/3,899.85 = 1,647.14/x
  3. Step 3: Cross multiply
    2,825.96x = 3,899.85 × 1,647.14
  4. Step 4: Simplify right side
    2,825.96x = 6,423,598.93
  5. Step 5: Solve for x
    x = 6,423,598.93/2,825.96
  6. Step 6: Final answer
    x = 2,273.07

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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.