Home / 1,774.93-2,661.58-1,287.31

Finding the Fourth Proportional to 1,774.93, 2,661.58 and 1,287.31

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Solution

The fourth proportional to 1,774.93, 2,661.58 and 1,287.31 is: 1,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.93 : 2,661.58 = 1,287.31 : x
  2. Step 2: Convert to fraction form
    1,774.93/2,661.58 = 1,287.31/x
  3. Step 3: Cross multiply
    1,774.93x = 2,661.58 × 1,287.31
  4. Step 4: Simplify right side
    1,774.93x = 3,426,278.55
  5. Step 5: Solve for x
    x = 3,426,278.55/1,774.93
  6. Step 6: Final answer
    x = 1,930.37

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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.