Home / 3,005.44-4,148.67-2,690.15

Finding the Fourth Proportional to 3,005.44, 4,148.67 and 2,690.15

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Solution

The fourth proportional to 3,005.44, 4,148.67 and 2,690.15 is: 3,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.44 : 4,148.67 = 2,690.15 : x
  2. Step 2: Convert to fraction form
    3,005.44/4,148.67 = 2,690.15/x
  3. Step 3: Cross multiply
    3,005.44x = 4,148.67 × 2,690.15
  4. Step 4: Simplify right side
    3,005.44x = 11,160,543.55
  5. Step 5: Solve for x
    x = 11,160,543.55/3,005.44
  6. Step 6: Final answer
    x = 3,713.44

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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.