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Finding the Fourth Proportional to 1,695.66, 2,556.65 and 1,551.66

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Solution

The fourth proportional to 1,695.66, 2,556.65 and 1,551.66 is: 2,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.66 : 2,556.65 = 1,551.66 : x
  2. Step 2: Convert to fraction form
    1,695.66/2,556.65 = 1,551.66/x
  3. Step 3: Cross multiply
    1,695.66x = 2,556.65 × 1,551.66
  4. Step 4: Simplify right side
    1,695.66x = 3,967,043.78
  5. Step 5: Solve for x
    x = 3,967,043.78/1,695.66
  6. Step 6: Final answer
    x = 2,339.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.