Home / 3,784.10-5,676.09-1,187.06

Finding the Fourth Proportional to 3,784.10, 5,676.09 and 1,187.06

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Solution

The fourth proportional to 3,784.10, 5,676.09 and 1,187.06 is: 1,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.10 : 5,676.09 = 1,187.06 : x
  2. Step 2: Convert to fraction form
    3,784.10/5,676.09 = 1,187.06/x
  3. Step 3: Cross multiply
    3,784.10x = 5,676.09 × 1,187.06
  4. Step 4: Simplify right side
    3,784.10x = 6,737,859.40
  5. Step 5: Solve for x
    x = 6,737,859.40/3,784.10
  6. Step 6: Final answer
    x = 1,780.57

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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.