Home / 3,940.04-5,885.12-3,065.24

Finding the Fourth Proportional to 3,940.04, 5,885.12 and 3,065.24

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Solution

The fourth proportional to 3,940.04, 5,885.12 and 3,065.24 is: 4,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.04 : 5,885.12 = 3,065.24 : x
  2. Step 2: Convert to fraction form
    3,940.04/5,885.12 = 3,065.24/x
  3. Step 3: Cross multiply
    3,940.04x = 5,885.12 × 3,065.24
  4. Step 4: Simplify right side
    3,940.04x = 18,039,305.23
  5. Step 5: Solve for x
    x = 18,039,305.23/3,940.04
  6. Step 6: Final answer
    x = 4,578.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.