Home / 4,718.12-6,512.82-3,145.64

Finding the Fourth Proportional to 4,718.12, 6,512.82 and 3,145.64

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Solution

The fourth proportional to 4,718.12, 6,512.82 and 3,145.64 is: 4,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.12 : 6,512.82 = 3,145.64 : x
  2. Step 2: Convert to fraction form
    4,718.12/6,512.82 = 3,145.64/x
  3. Step 3: Cross multiply
    4,718.12x = 6,512.82 × 3,145.64
  4. Step 4: Simplify right side
    4,718.12x = 20,486,987.10
  5. Step 5: Solve for x
    x = 20,486,987.10/4,718.12
  6. Step 6: Final answer
    x = 4,342.19

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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.