Home / 3,118.07-4,302.93-1,720.82

Finding the Fourth Proportional to 3,118.07, 4,302.93 and 1,720.82

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Solution

The fourth proportional to 3,118.07, 4,302.93 and 1,720.82 is: 2,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.07 : 4,302.93 = 1,720.82 : x
  2. Step 2: Convert to fraction form
    3,118.07/4,302.93 = 1,720.82/x
  3. Step 3: Cross multiply
    3,118.07x = 4,302.93 × 1,720.82
  4. Step 4: Simplify right side
    3,118.07x = 7,404,568.00
  5. Step 5: Solve for x
    x = 7,404,568.00/3,118.07
  6. Step 6: Final answer
    x = 2,374.73

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1.5x scale

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.