Home / 2,287.17-3,430.26-825.51

Finding the Fourth Proportional to 2,287.17, 3,430.26 and 825.51

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Solution

The fourth proportional to 2,287.17, 3,430.26 and 825.51 is: 1,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.17 : 3,430.26 = 825.51 : x
  2. Step 2: Convert to fraction form
    2,287.17/3,430.26 = 825.51/x
  3. Step 3: Cross multiply
    2,287.17x = 3,430.26 × 825.51
  4. Step 4: Simplify right side
    2,287.17x = 2,831,713.93
  5. Step 5: Solve for x
    x = 2,831,713.93/2,287.17
  6. Step 6: Final answer
    x = 1,238.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.