Home / 1,835.40-2,747.70-1,106.40

Finding the Fourth Proportional to 1,835.40, 2,747.70 and 1,106.40

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Solution

The fourth proportional to 1,835.40, 2,747.70 and 1,106.40 is: 1,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.40 : 2,747.70 = 1,106.40 : x
  2. Step 2: Convert to fraction form
    1,835.40/2,747.70 = 1,106.40/x
  3. Step 3: Cross multiply
    1,835.40x = 2,747.70 × 1,106.40
  4. Step 4: Simplify right side
    1,835.40x = 3,040,055.28
  5. Step 5: Solve for x
    x = 3,040,055.28/1,835.40
  6. Step 6: Final answer
    x = 1,656.34

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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.