Home / 2,941.46-4,412.16-720.30

Finding the Fourth Proportional to 2,941.46, 4,412.16 and 720.30

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Solution

The fourth proportional to 2,941.46, 4,412.16 and 720.30 is: 1,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,941.46 : 4,412.16 = 720.30 : x
  2. Step 2: Convert to fraction form
    2,941.46/4,412.16 = 720.30/x
  3. Step 3: Cross multiply
    2,941.46x = 4,412.16 × 720.30
  4. Step 4: Simplify right side
    2,941.46x = 3,178,078.85
  5. Step 5: Solve for x
    x = 3,178,078.85/2,941.46
  6. Step 6: Final answer
    x = 1,080.44

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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.