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Finding the Fourth Proportional to 1,842.14, 2,762.93 and 609.60

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Solution

The fourth proportional to 1,842.14, 2,762.93 and 609.60 is: 914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.14 : 2,762.93 = 609.60 : x
  2. Step 2: Convert to fraction form
    1,842.14/2,762.93 = 609.60/x
  3. Step 3: Cross multiply
    1,842.14x = 2,762.93 × 609.60
  4. Step 4: Simplify right side
    1,842.14x = 1,684,282.13
  5. Step 5: Solve for x
    x = 1,684,282.13/1,842.14
  6. Step 6: Final answer
    x = 914.31

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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.