Home / 3,858.08-5,320.86-2,681.96

Finding the Fourth Proportional to 3,858.08, 5,320.86 and 2,681.96

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Solution

The fourth proportional to 3,858.08, 5,320.86 and 2,681.96 is: 3,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.08 : 5,320.86 = 2,681.96 : x
  2. Step 2: Convert to fraction form
    3,858.08/5,320.86 = 2,681.96/x
  3. Step 3: Cross multiply
    3,858.08x = 5,320.86 × 2,681.96
  4. Step 4: Simplify right side
    3,858.08x = 14,270,333.69
  5. Step 5: Solve for x
    x = 14,270,333.69/3,858.08
  6. Step 6: Final answer
    x = 3,698.82

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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.