Home / 3,818.93-5,270.49-2,140.34

Finding the Fourth Proportional to 3,818.93, 5,270.49 and 2,140.34

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Solution

The fourth proportional to 3,818.93, 5,270.49 and 2,140.34 is: 2,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.93 : 5,270.49 = 2,140.34 : x
  2. Step 2: Convert to fraction form
    3,818.93/5,270.49 = 2,140.34/x
  3. Step 3: Cross multiply
    3,818.93x = 5,270.49 × 2,140.34
  4. Step 4: Simplify right side
    3,818.93x = 11,280,614.21
  5. Step 5: Solve for x
    x = 11,280,614.21/3,818.93
  6. Step 6: Final answer
    x = 2,953.87

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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.