Home / 5,260.20-7,890.30-4,338.60

Finding the Fourth Proportional to 5,260.20, 7,890.30 and 4,338.60

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Solution

The fourth proportional to 5,260.20, 7,890.30 and 4,338.60 is: 6,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.20 : 7,890.30 = 4,338.60 : x
  2. Step 2: Convert to fraction form
    5,260.20/7,890.30 = 4,338.60/x
  3. Step 3: Cross multiply
    5,260.20x = 7,890.30 × 4,338.60
  4. Step 4: Simplify right side
    5,260.20x = 34,232,855.58
  5. Step 5: Solve for x
    x = 34,232,855.58/5,260.20
  6. Step 6: Final answer
    x = 6,507.90

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1.5x scale

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.