Home / 1,886.40-2,603.16-1,100.43

Finding the Fourth Proportional to 1,886.40, 2,603.16 and 1,100.43

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Solution

The fourth proportional to 1,886.40, 2,603.16 and 1,100.43 is: 1,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.40 : 2,603.16 = 1,100.43 : x
  2. Step 2: Convert to fraction form
    1,886.40/2,603.16 = 1,100.43/x
  3. Step 3: Cross multiply
    1,886.40x = 2,603.16 × 1,100.43
  4. Step 4: Simplify right side
    1,886.40x = 2,864,595.36
  5. Step 5: Solve for x
    x = 2,864,595.36/1,886.40
  6. Step 6: Final answer
    x = 1,518.55

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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.