Home / 6,378.10-8,801.70-3,583.60

Finding the Fourth Proportional to 6,378.10, 8,801.70 and 3,583.60

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Solution

The fourth proportional to 6,378.10, 8,801.70 and 3,583.60 is: 4,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.10 : 8,801.70 = 3,583.60 : x
  2. Step 2: Convert to fraction form
    6,378.10/8,801.70 = 3,583.60/x
  3. Step 3: Cross multiply
    6,378.10x = 8,801.70 × 3,583.60
  4. Step 4: Simplify right side
    6,378.10x = 31,541,772.12
  5. Step 5: Solve for x
    x = 31,541,772.12/6,378.10
  6. Step 6: Final answer
    x = 4,945.32

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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.