Home / 4,480.12-6,720.90-1,883.20

Finding the Fourth Proportional to 4,480.12, 6,720.90 and 1,883.20

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Solution

The fourth proportional to 4,480.12, 6,720.90 and 1,883.20 is: 2,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.12 : 6,720.90 = 1,883.20 : x
  2. Step 2: Convert to fraction form
    4,480.12/6,720.90 = 1,883.20/x
  3. Step 3: Cross multiply
    4,480.12x = 6,720.90 × 1,883.20
  4. Step 4: Simplify right side
    4,480.12x = 12,656,798.88
  5. Step 5: Solve for x
    x = 12,656,798.88/4,480.12
  6. Step 6: Final answer
    x = 2,825.10

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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.