Home / 3,876,165.75-5,349,284.91-2,157,396.42

Finding the Fourth Proportional to 3,876,165.75, 5,349,284.91 and 2,157,396.42

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Solution

The fourth proportional to 3,876,165.75, 5,349,284.91 and 2,157,396.42 is: 2,977,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,165.75 : 5,349,284.91 = 2,157,396.42 : x
  2. Step 2: Convert to fraction form
    3,876,165.75/5,349,284.91 = 2,157,396.42/x
  3. Step 3: Cross multiply
    3,876,165.75x = 5,349,284.91 × 2,157,396.42
  4. Step 4: Simplify right side
    3,876,165.75x = 11,540,528,114,394.02
  5. Step 5: Solve for x
    x = 11,540,528,114,394.02/3,876,165.75
  6. Step 6: Final answer
    x = 2,977,305.12

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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.