Home / 2,956.14-4,078.68-1,680.01

Finding the Fourth Proportional to 2,956.14, 4,078.68 and 1,680.01

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Solution

The fourth proportional to 2,956.14, 4,078.68 and 1,680.01 is: 2,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.14 : 4,078.68 = 1,680.01 : x
  2. Step 2: Convert to fraction form
    2,956.14/4,078.68 = 1,680.01/x
  3. Step 3: Cross multiply
    2,956.14x = 4,078.68 × 1,680.01
  4. Step 4: Simplify right side
    2,956.14x = 6,852,223.19
  5. Step 5: Solve for x
    x = 6,852,223.19/2,956.14
  6. Step 6: Final answer
    x = 2,317.96

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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.