Home / 1,955.08-2,697.36-1,208.80

Finding the Fourth Proportional to 1,955.08, 2,697.36 and 1,208.80

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Solution

The fourth proportional to 1,955.08, 2,697.36 and 1,208.80 is: 1,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.08 : 2,697.36 = 1,208.80 : x
  2. Step 2: Convert to fraction form
    1,955.08/2,697.36 = 1,208.80/x
  3. Step 3: Cross multiply
    1,955.08x = 2,697.36 × 1,208.80
  4. Step 4: Simplify right side
    1,955.08x = 3,260,568.77
  5. Step 5: Solve for x
    x = 3,260,568.77/1,955.08
  6. Step 6: Final answer
    x = 1,667.74

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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.