Home / 1,886.60-2,603.40-1,100.36

Finding the Fourth Proportional to 1,886.60, 2,603.40 and 1,100.36

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Solution

The fourth proportional to 1,886.60, 2,603.40 and 1,100.36 is: 1,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.60 : 2,603.40 = 1,100.36 : x
  2. Step 2: Convert to fraction form
    1,886.60/2,603.40 = 1,100.36/x
  3. Step 3: Cross multiply
    1,886.60x = 2,603.40 × 1,100.36
  4. Step 4: Simplify right side
    1,886.60x = 2,864,677.22
  5. Step 5: Solve for x
    x = 2,864,677.22/1,886.60
  6. Step 6: Final answer
    x = 1,518.43

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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.