Home / 1,258.36-1,883.94-1,040.92

Finding the Fourth Proportional to 1,258.36, 1,883.94 and 1,040.92

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Solution

The fourth proportional to 1,258.36, 1,883.94 and 1,040.92 is: 1,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.36 : 1,883.94 = 1,040.92 : x
  2. Step 2: Convert to fraction form
    1,258.36/1,883.94 = 1,040.92/x
  3. Step 3: Cross multiply
    1,258.36x = 1,883.94 × 1,040.92
  4. Step 4: Simplify right side
    1,258.36x = 1,961,030.82
  5. Step 5: Solve for x
    x = 1,961,030.82/1,258.36
  6. Step 6: Final answer
    x = 1,558.40

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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.