Home / 1,956.69-2,700.58-1,170.74

Finding the Fourth Proportional to 1,956.69, 2,700.58 and 1,170.74

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Solution

The fourth proportional to 1,956.69, 2,700.58 and 1,170.74 is: 1,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.69 : 2,700.58 = 1,170.74 : x
  2. Step 2: Convert to fraction form
    1,956.69/2,700.58 = 1,170.74/x
  3. Step 3: Cross multiply
    1,956.69x = 2,700.58 × 1,170.74
  4. Step 4: Simplify right side
    1,956.69x = 3,161,660.60
  5. Step 5: Solve for x
    x = 3,161,660.60/1,956.69
  6. Step 6: Final answer
    x = 1,615.82

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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.