Home / 6,530.60-9,795.90-3,938.60

Finding the Fourth Proportional to 6,530.60, 9,795.90 and 3,938.60

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Solution

The fourth proportional to 6,530.60, 9,795.90 and 3,938.60 is: 5,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,530.60 : 9,795.90 = 3,938.60 : x
  2. Step 2: Convert to fraction form
    6,530.60/9,795.90 = 3,938.60/x
  3. Step 3: Cross multiply
    6,530.60x = 9,795.90 × 3,938.60
  4. Step 4: Simplify right side
    6,530.60x = 38,582,131.74
  5. Step 5: Solve for x
    x = 38,582,131.74/6,530.60
  6. Step 6: Final answer
    x = 5,907.90

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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.