Home / 1,956.19-2,699.62-1,116.90

Finding the Fourth Proportional to 1,956.19, 2,699.62 and 1,116.90

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Solution

The fourth proportional to 1,956.19, 2,699.62 and 1,116.90 is: 1,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.19 : 2,699.62 = 1,116.90 : x
  2. Step 2: Convert to fraction form
    1,956.19/2,699.62 = 1,116.90/x
  3. Step 3: Cross multiply
    1,956.19x = 2,699.62 × 1,116.90
  4. Step 4: Simplify right side
    1,956.19x = 3,015,199.99
  5. Step 5: Solve for x
    x = 3,015,199.99/1,956.19
  6. Step 6: Final answer
    x = 1,541.36

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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.