Home / 1,955.85-2,699.81-1,293.60

Finding the Fourth Proportional to 1,955.85, 2,699.81 and 1,293.60

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Solution

The fourth proportional to 1,955.85, 2,699.81 and 1,293.60 is: 1,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.85 : 2,699.81 = 1,293.60 : x
  2. Step 2: Convert to fraction form
    1,955.85/2,699.81 = 1,293.60/x
  3. Step 3: Cross multiply
    1,955.85x = 2,699.81 × 1,293.60
  4. Step 4: Simplify right side
    1,955.85x = 3,492,467.75
  5. Step 5: Solve for x
    x = 3,492,467.75/1,955.85
  6. Step 6: Final answer
    x = 1,785.65

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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.