Home / 3,080.52-4,617.48-1,438.20

Finding the Fourth Proportional to 3,080.52, 4,617.48 and 1,438.20

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Solution

The fourth proportional to 3,080.52, 4,617.48 and 1,438.20 is: 2,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.52 : 4,617.48 = 1,438.20 : x
  2. Step 2: Convert to fraction form
    3,080.52/4,617.48 = 1,438.20/x
  3. Step 3: Cross multiply
    3,080.52x = 4,617.48 × 1,438.20
  4. Step 4: Simplify right side
    3,080.52x = 6,640,859.74
  5. Step 5: Solve for x
    x = 6,640,859.74/3,080.52
  6. Step 6: Final answer
    x = 2,155.76

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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.