Home / 6,405.78-9,607.96-2,020.84

Finding the Fourth Proportional to 6,405.78, 9,607.96 and 2,020.84

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Solution

The fourth proportional to 6,405.78, 9,607.96 and 2,020.84 is: 3,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.78 : 9,607.96 = 2,020.84 : x
  2. Step 2: Convert to fraction form
    6,405.78/9,607.96 = 2,020.84/x
  3. Step 3: Cross multiply
    6,405.78x = 9,607.96 × 2,020.84
  4. Step 4: Simplify right side
    6,405.78x = 19,416,149.89
  5. Step 5: Solve for x
    x = 19,416,149.89/6,405.78
  6. Step 6: Final answer
    x = 3,031.04

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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.