Home / 6,720.20-10,080.52-3,210.60

Finding the Fourth Proportional to 6,720.20, 10,080.52 and 3,210.60

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Solution

The fourth proportional to 6,720.20, 10,080.52 and 3,210.60 is: 4,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.20 : 10,080.52 = 3,210.60 : x
  2. Step 2: Convert to fraction form
    6,720.20/10,080.52 = 3,210.60/x
  3. Step 3: Cross multiply
    6,720.20x = 10,080.52 × 3,210.60
  4. Step 4: Simplify right side
    6,720.20x = 32,364,509.49
  5. Step 5: Solve for x
    x = 32,364,509.49/6,720.20
  6. Step 6: Final answer
    x = 4,816.01

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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.