Home / 3,854.99-5,319.88-2,176.39

Finding the Fourth Proportional to 3,854.99, 5,319.88 and 2,176.39

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Solution

The fourth proportional to 3,854.99, 5,319.88 and 2,176.39 is: 3,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.99 : 5,319.88 = 2,176.39 : x
  2. Step 2: Convert to fraction form
    3,854.99/5,319.88 = 2,176.39/x
  3. Step 3: Cross multiply
    3,854.99x = 5,319.88 × 2,176.39
  4. Step 4: Simplify right side
    3,854.99x = 11,578,133.63
  5. Step 5: Solve for x
    x = 11,578,133.63/3,854.99
  6. Step 6: Final answer
    x = 3,003.41

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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.