Home / 1,605.95-2,215.69-942.97

Finding the Fourth Proportional to 1,605.95, 2,215.69 and 942.97

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Solution

The fourth proportional to 1,605.95, 2,215.69 and 942.97 is: 1,300.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.95 : 2,215.69 = 942.97 : x
  2. Step 2: Convert to fraction form
    1,605.95/2,215.69 = 942.97/x
  3. Step 3: Cross multiply
    1,605.95x = 2,215.69 × 942.97
  4. Step 4: Simplify right side
    1,605.95x = 2,089,318.12
  5. Step 5: Solve for x
    x = 2,089,318.12/1,605.95
  6. Step 6: Final answer
    x = 1,300.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.