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Finding the Fourth Proportional to 1,891.02, 2,837.09 and 904.58

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Solution

The fourth proportional to 1,891.02, 2,837.09 and 904.58 is: 1,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.02 : 2,837.09 = 904.58 : x
  2. Step 2: Convert to fraction form
    1,891.02/2,837.09 = 904.58/x
  3. Step 3: Cross multiply
    1,891.02x = 2,837.09 × 904.58
  4. Step 4: Simplify right side
    1,891.02x = 2,566,374.87
  5. Step 5: Solve for x
    x = 2,566,374.87/1,891.02
  6. Step 6: Final answer
    x = 1,357.14

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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.