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Finding the Fourth Proportional to 1,697.55, 2,546 and 464.80

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Solution

The fourth proportional to 1,697.55, 2,546 and 464.80 is: 697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.55 : 2,546 = 464.80 : x
  2. Step 2: Convert to fraction form
    1,697.55/2,546 = 464.80/x
  3. Step 3: Cross multiply
    1,697.55x = 2,546 × 464.80
  4. Step 4: Simplify right side
    1,697.55x = 1,183,368.07
  5. Step 5: Solve for x
    x = 1,183,368.07/1,697.55
  6. Step 6: Final answer
    x = 697.10

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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.