Home / 1,941.03-2,911.59-480.20

Finding the Fourth Proportional to 1,941.03, 2,911.59 and 480.20

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Solution

The fourth proportional to 1,941.03, 2,911.59 and 480.20 is: 720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.03 : 2,911.59 = 480.20 : x
  2. Step 2: Convert to fraction form
    1,941.03/2,911.59 = 480.20/x
  3. Step 3: Cross multiply
    1,941.03x = 2,911.59 × 480.20
  4. Step 4: Simplify right side
    1,941.03x = 1,398,130.96
  5. Step 5: Solve for x
    x = 1,398,130.96/1,941.03
  6. Step 6: Final answer
    x = 720.30

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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.