Home / 3,886.56-5,829.90-1,113.24

Finding the Fourth Proportional to 3,886.56, 5,829.90 and 1,113.24

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Solution

The fourth proportional to 3,886.56, 5,829.90 and 1,113.24 is: 1,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.56 : 5,829.90 = 1,113.24 : x
  2. Step 2: Convert to fraction form
    3,886.56/5,829.90 = 1,113.24/x
  3. Step 3: Cross multiply
    3,886.56x = 5,829.90 × 1,113.24
  4. Step 4: Simplify right side
    3,886.56x = 6,490,077.88
  5. Step 5: Solve for x
    x = 6,490,077.88/3,886.56
  6. Step 6: Final answer
    x = 1,669.88

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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.