Home / 3,071.44-4,238.64-1,674.40

Finding the Fourth Proportional to 3,071.44, 4,238.64 and 1,674.40

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Solution

The fourth proportional to 3,071.44, 4,238.64 and 1,674.40 is: 2,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.44 : 4,238.64 = 1,674.40 : x
  2. Step 2: Convert to fraction form
    3,071.44/4,238.64 = 1,674.40/x
  3. Step 3: Cross multiply
    3,071.44x = 4,238.64 × 1,674.40
  4. Step 4: Simplify right side
    3,071.44x = 7,097,178.82
  5. Step 5: Solve for x
    x = 7,097,178.82/3,071.44
  6. Step 6: Final answer
    x = 2,310.70

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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.