Home / 3,942.51-5,440.68-2,370.63

Finding the Fourth Proportional to 3,942.51, 5,440.68 and 2,370.63

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Solution

The fourth proportional to 3,942.51, 5,440.68 and 2,370.63 is: 3,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.51 : 5,440.68 = 2,370.63 : x
  2. Step 2: Convert to fraction form
    3,942.51/5,440.68 = 2,370.63/x
  3. Step 3: Cross multiply
    3,942.51x = 5,440.68 × 2,370.63
  4. Step 4: Simplify right side
    3,942.51x = 12,897,839.23
  5. Step 5: Solve for x
    x = 12,897,839.23/3,942.51
  6. Step 6: Final answer
    x = 3,271.48

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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.