Home / 1,731.32-2,388.44-1,258

Finding the Fourth Proportional to 1,731.32, 2,388.44 and 1,258

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Solution

The fourth proportional to 1,731.32, 2,388.44 and 1,258 is: 1,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.32 : 2,388.44 = 1,258 : x
  2. Step 2: Convert to fraction form
    1,731.32/2,388.44 = 1,258/x
  3. Step 3: Cross multiply
    1,731.32x = 2,388.44 × 1,258
  4. Step 4: Simplify right side
    1,731.32x = 3,004,657.52
  5. Step 5: Solve for x
    x = 3,004,657.52/1,731.32
  6. Step 6: Final answer
    x = 1,735.47

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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.