Home / 5,382.42-7,427.39-3,144.93

Finding the Fourth Proportional to 5,382.42, 7,427.39 and 3,144.93

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Solution

The fourth proportional to 5,382.42, 7,427.39 and 3,144.93 is: 4,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.42 : 7,427.39 = 3,144.93 : x
  2. Step 2: Convert to fraction form
    5,382.42/7,427.39 = 3,144.93/x
  3. Step 3: Cross multiply
    5,382.42x = 7,427.39 × 3,144.93
  4. Step 4: Simplify right side
    5,382.42x = 23,358,621.63
  5. Step 5: Solve for x
    x = 23,358,621.63/5,382.42
  6. Step 6: Final answer
    x = 4,339.80

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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.