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Finding the Fourth Proportional to 1,698.58, 2,548.38 and 602.68

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Solution

The fourth proportional to 1,698.58, 2,548.38 and 602.68 is: 904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.58 : 2,548.38 = 602.68 : x
  2. Step 2: Convert to fraction form
    1,698.58/2,548.38 = 602.68/x
  3. Step 3: Cross multiply
    1,698.58x = 2,548.38 × 602.68
  4. Step 4: Simplify right side
    1,698.58x = 1,535,857.66
  5. Step 5: Solve for x
    x = 1,535,857.66/1,698.58
  6. Step 6: Final answer
    x = 904.20

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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.