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Finding the Fourth Proportional to 2,644.69, 3,646.36 and 1,698.82

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Solution

The fourth proportional to 2,644.69, 3,646.36 and 1,698.82 is: 2,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.69 : 3,646.36 = 1,698.82 : x
  2. Step 2: Convert to fraction form
    2,644.69/3,646.36 = 1,698.82/x
  3. Step 3: Cross multiply
    2,644.69x = 3,646.36 × 1,698.82
  4. Step 4: Simplify right side
    2,644.69x = 6,194,509.30
  5. Step 5: Solve for x
    x = 6,194,509.30/2,644.69
  6. Step 6: Final answer
    x = 2,342.24

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1.5x scale

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.