Home / 6,420.40-9,623.73-3,297.10

Finding the Fourth Proportional to 6,420.40, 9,623.73 and 3,297.10

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Solution

The fourth proportional to 6,420.40, 9,623.73 and 3,297.10 is: 4,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.40 : 9,623.73 = 3,297.10 : x
  2. Step 2: Convert to fraction form
    6,420.40/9,623.73 = 3,297.10/x
  3. Step 3: Cross multiply
    6,420.40x = 9,623.73 × 3,297.10
  4. Step 4: Simplify right side
    6,420.40x = 31,730,400.18
  5. Step 5: Solve for x
    x = 31,730,400.18/6,420.40
  6. Step 6: Final answer
    x = 4,942.12

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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.