Home / 6,405.14-9,607.37-1,962.80

Finding the Fourth Proportional to 6,405.14, 9,607.37 and 1,962.80

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Solution

The fourth proportional to 6,405.14, 9,607.37 and 1,962.80 is: 2,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.14 : 9,607.37 = 1,962.80 : x
  2. Step 2: Convert to fraction form
    6,405.14/9,607.37 = 1,962.80/x
  3. Step 3: Cross multiply
    6,405.14x = 9,607.37 × 1,962.80
  4. Step 4: Simplify right side
    6,405.14x = 18,857,336.02
  5. Step 5: Solve for x
    x = 18,857,336.02/6,405.14
  6. Step 6: Final answer
    x = 2,944.09

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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.