Home / 6,318.48-8,719.55-3,485.95

Finding the Fourth Proportional to 6,318.48, 8,719.55 and 3,485.95

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Solution

The fourth proportional to 6,318.48, 8,719.55 and 3,485.95 is: 4,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.48 : 8,719.55 = 3,485.95 : x
  2. Step 2: Convert to fraction form
    6,318.48/8,719.55 = 3,485.95/x
  3. Step 3: Cross multiply
    6,318.48x = 8,719.55 × 3,485.95
  4. Step 4: Simplify right side
    6,318.48x = 30,395,915.32
  5. Step 5: Solve for x
    x = 30,395,915.32/6,318.48
  6. Step 6: Final answer
    x = 4,810.64

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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.