Home / 6,621.10-9,137.32-3,826.60

Finding the Fourth Proportional to 6,621.10, 9,137.32 and 3,826.60

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Solution

The fourth proportional to 6,621.10, 9,137.32 and 3,826.60 is: 5,280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.10 : 9,137.32 = 3,826.60 : x
  2. Step 2: Convert to fraction form
    6,621.10/9,137.32 = 3,826.60/x
  3. Step 3: Cross multiply
    6,621.10x = 9,137.32 × 3,826.60
  4. Step 4: Simplify right side
    6,621.10x = 34,964,868.71
  5. Step 5: Solve for x
    x = 34,964,868.71/6,621.10
  6. Step 6: Final answer
    x = 5,280.82

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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.