Home / 6,623.24-9,140.31-3,639.35

Finding the Fourth Proportional to 6,623.24, 9,140.31 and 3,639.35

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Solution

The fourth proportional to 6,623.24, 9,140.31 and 3,639.35 is: 5,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.24 : 9,140.31 = 3,639.35 : x
  2. Step 2: Convert to fraction form
    6,623.24/9,140.31 = 3,639.35/x
  3. Step 3: Cross multiply
    6,623.24x = 9,140.31 × 3,639.35
  4. Step 4: Simplify right side
    6,623.24x = 33,264,810.05
  5. Step 5: Solve for x
    x = 33,264,810.05/6,623.24
  6. Step 6: Final answer
    x = 5,022.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.