Home / 4,276.02-6,405.15-2,189.72

Finding the Fourth Proportional to 4,276.02, 6,405.15 and 2,189.72

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Solution

The fourth proportional to 4,276.02, 6,405.15 and 2,189.72 is: 3,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.02 : 6,405.15 = 2,189.72 : x
  2. Step 2: Convert to fraction form
    4,276.02/6,405.15 = 2,189.72/x
  3. Step 3: Cross multiply
    4,276.02x = 6,405.15 × 2,189.72
  4. Step 4: Simplify right side
    4,276.02x = 14,025,453.03
  5. Step 5: Solve for x
    x = 14,025,453.03/4,276.02
  6. Step 6: Final answer
    x = 3,280.03

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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.