Home / 3,881.16-5,816.49-2,123.51

Finding the Fourth Proportional to 3,881.16, 5,816.49 and 2,123.51

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Solution

The fourth proportional to 3,881.16, 5,816.49 and 2,123.51 is: 3,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.16 : 5,816.49 = 2,123.51 : x
  2. Step 2: Convert to fraction form
    3,881.16/5,816.49 = 2,123.51/x
  3. Step 3: Cross multiply
    3,881.16x = 5,816.49 × 2,123.51
  4. Step 4: Simplify right side
    3,881.16x = 12,351,345.60
  5. Step 5: Solve for x
    x = 12,351,345.60/3,881.16
  6. Step 6: Final answer
    x = 3,182.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.