Home / 6,480.12-9,720.35-1,800.14

Finding the Fourth Proportional to 6,480.12, 9,720.35 and 1,800.14

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Solution

The fourth proportional to 6,480.12, 9,720.35 and 1,800.14 is: 2,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.12 : 9,720.35 = 1,800.14 : x
  2. Step 2: Convert to fraction form
    6,480.12/9,720.35 = 1,800.14/x
  3. Step 3: Cross multiply
    6,480.12x = 9,720.35 × 1,800.14
  4. Step 4: Simplify right side
    6,480.12x = 17,498,004.80
  5. Step 5: Solve for x
    x = 17,498,004.80/6,480.12
  6. Step 6: Final answer
    x = 2,700.26

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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.