Home / 5,672.30-7,829.40-3,786.62

Finding the Fourth Proportional to 5,672.30, 7,829.40 and 3,786.62

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Solution

The fourth proportional to 5,672.30, 7,829.40 and 3,786.62 is: 5,226.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.30 : 7,829.40 = 3,786.62 : x
  2. Step 2: Convert to fraction form
    5,672.30/7,829.40 = 3,786.62/x
  3. Step 3: Cross multiply
    5,672.30x = 7,829.40 × 3,786.62
  4. Step 4: Simplify right side
    5,672.30x = 29,646,962.63
  5. Step 5: Solve for x
    x = 29,646,962.63/5,672.30
  6. Step 6: Final answer
    x = 5,226.62

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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.