Home / 1,954.36-2,697.08-1,115.19

Finding the Fourth Proportional to 1,954.36, 2,697.08 and 1,115.19

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Solution

The fourth proportional to 1,954.36, 2,697.08 and 1,115.19 is: 1,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.36 : 2,697.08 = 1,115.19 : x
  2. Step 2: Convert to fraction form
    1,954.36/2,697.08 = 1,115.19/x
  3. Step 3: Cross multiply
    1,954.36x = 2,697.08 × 1,115.19
  4. Step 4: Simplify right side
    1,954.36x = 3,007,756.65
  5. Step 5: Solve for x
    x = 3,007,756.65/1,954.36
  6. Step 6: Final answer
    x = 1,539.00

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Double scale
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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.