Home / 6,113.10-8,436.06-3,318.60

Finding the Fourth Proportional to 6,113.10, 8,436.06 and 3,318.60

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Solution

The fourth proportional to 6,113.10, 8,436.06 and 3,318.60 is: 4,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.10 : 8,436.06 = 3,318.60 : x
  2. Step 2: Convert to fraction form
    6,113.10/8,436.06 = 3,318.60/x
  3. Step 3: Cross multiply
    6,113.10x = 8,436.06 × 3,318.60
  4. Step 4: Simplify right side
    6,113.10x = 27,995,908.72
  5. Step 5: Solve for x
    x = 27,995,908.72/6,113.10
  6. Step 6: Final answer
    x = 4,579.66

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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.