Home / 6,420.73-9,632.40-3,648.73

Finding the Fourth Proportional to 6,420.73, 9,632.40 and 3,648.73

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Solution

The fourth proportional to 6,420.73, 9,632.40 and 3,648.73 is: 5,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.73 : 9,632.40 = 3,648.73 : x
  2. Step 2: Convert to fraction form
    6,420.73/9,632.40 = 3,648.73/x
  3. Step 3: Cross multiply
    6,420.73x = 9,632.40 × 3,648.73
  4. Step 4: Simplify right side
    6,420.73x = 35,146,026.85
  5. Step 5: Solve for x
    x = 35,146,026.85/6,420.73
  6. Step 6: Final answer
    x = 5,473.84

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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.