Home / 2,825.79-3,899.48-1,883.28

Finding the Fourth Proportional to 2,825.79, 3,899.48 and 1,883.28

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Solution

The fourth proportional to 2,825.79, 3,899.48 and 1,883.28 is: 2,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.79 : 3,899.48 = 1,883.28 : x
  2. Step 2: Convert to fraction form
    2,825.79/3,899.48 = 1,883.28/x
  3. Step 3: Cross multiply
    2,825.79x = 3,899.48 × 1,883.28
  4. Step 4: Simplify right side
    2,825.79x = 7,343,817.90
  5. Step 5: Solve for x
    x = 7,343,817.90/2,825.79
  6. Step 6: Final answer
    x = 2,598.86

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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.