Home / 3,579.15-5,368.50-1,113.78

Finding the Fourth Proportional to 3,579.15, 5,368.50 and 1,113.78

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Solution

The fourth proportional to 3,579.15, 5,368.50 and 1,113.78 is: 1,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.15 : 5,368.50 = 1,113.78 : x
  2. Step 2: Convert to fraction form
    3,579.15/5,368.50 = 1,113.78/x
  3. Step 3: Cross multiply
    3,579.15x = 5,368.50 × 1,113.78
  4. Step 4: Simplify right side
    3,579.15x = 5,979,327.93
  5. Step 5: Solve for x
    x = 5,979,327.93/3,579.15
  6. Step 6: Final answer
    x = 1,670.60

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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.