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Finding the Fourth Proportional to 2,290.93, 3,437.81 and 904.03

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Solution

The fourth proportional to 2,290.93, 3,437.81 and 904.03 is: 1,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.93 : 3,437.81 = 904.03 : x
  2. Step 2: Convert to fraction form
    2,290.93/3,437.81 = 904.03/x
  3. Step 3: Cross multiply
    2,290.93x = 3,437.81 × 904.03
  4. Step 4: Simplify right side
    2,290.93x = 3,107,883.37
  5. Step 5: Solve for x
    x = 3,107,883.37/2,290.93
  6. Step 6: Final answer
    x = 1,356.60

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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.