Home / 3,878.12-5,816.26-1,379.10

Finding the Fourth Proportional to 3,878.12, 5,816.26 and 1,379.10

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Solution

The fourth proportional to 3,878.12, 5,816.26 and 1,379.10 is: 2,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.12 : 5,816.26 = 1,379.10 : x
  2. Step 2: Convert to fraction form
    3,878.12/5,816.26 = 1,379.10/x
  3. Step 3: Cross multiply
    3,878.12x = 5,816.26 × 1,379.10
  4. Step 4: Simplify right side
    3,878.12x = 8,021,204.17
  5. Step 5: Solve for x
    x = 8,021,204.17/3,878.12
  6. Step 6: Final answer
    x = 2,068.32

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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.