Home / 2,956.87-4,080.86-1,698.13

Finding the Fourth Proportional to 2,956.87, 4,080.86 and 1,698.13

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Solution

The fourth proportional to 2,956.87, 4,080.86 and 1,698.13 is: 2,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.87 : 4,080.86 = 1,698.13 : x
  2. Step 2: Convert to fraction form
    2,956.87/4,080.86 = 1,698.13/x
  3. Step 3: Cross multiply
    2,956.87x = 4,080.86 × 1,698.13
  4. Step 4: Simplify right side
    2,956.87x = 6,929,830.79
  5. Step 5: Solve for x
    x = 6,929,830.79/2,956.87
  6. Step 6: Final answer
    x = 2,343.64

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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.