Home / 1,763.72-2,434.40-1,100.20

Finding the Fourth Proportional to 1,763.72, 2,434.40 and 1,100.20

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Solution

The fourth proportional to 1,763.72, 2,434.40 and 1,100.20 is: 1,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.72 : 2,434.40 = 1,100.20 : x
  2. Step 2: Convert to fraction form
    1,763.72/2,434.40 = 1,100.20/x
  3. Step 3: Cross multiply
    1,763.72x = 2,434.40 × 1,100.20
  4. Step 4: Simplify right side
    1,763.72x = 2,678,326.88
  5. Step 5: Solve for x
    x = 2,678,326.88/1,763.72
  6. Step 6: Final answer
    x = 1,518.57

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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.