Home / 1,695.05-2,536.71-1,235.78

Finding the Fourth Proportional to 1,695.05, 2,536.71 and 1,235.78

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Solution

The fourth proportional to 1,695.05, 2,536.71 and 1,235.78 is: 1,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.05 : 2,536.71 = 1,235.78 : x
  2. Step 2: Convert to fraction form
    1,695.05/2,536.71 = 1,235.78/x
  3. Step 3: Cross multiply
    1,695.05x = 2,536.71 × 1,235.78
  4. Step 4: Simplify right side
    1,695.05x = 3,134,802.80
  5. Step 5: Solve for x
    x = 3,134,802.80/1,695.05
  6. Step 6: Final answer
    x = 1,849.39

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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.