Home / 2,956.90-4,080.55-1,630.65

Finding the Fourth Proportional to 2,956.90, 4,080.55 and 1,630.65

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Solution

The fourth proportional to 2,956.90, 4,080.55 and 1,630.65 is: 2,250.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.90 : 4,080.55 = 1,630.65 : x
  2. Step 2: Convert to fraction form
    2,956.90/4,080.55 = 1,630.65/x
  3. Step 3: Cross multiply
    2,956.90x = 4,080.55 × 1,630.65
  4. Step 4: Simplify right side
    2,956.90x = 6,653,963.14
  5. Step 5: Solve for x
    x = 6,653,963.14/2,956.90
  6. Step 6: Final answer
    x = 2,250.32

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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.