Home / 2,720.55-4,080.83-1,422.93

Finding the Fourth Proportional to 2,720.55, 4,080.83 and 1,422.93

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Solution

The fourth proportional to 2,720.55, 4,080.83 and 1,422.93 is: 2,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.55 : 4,080.83 = 1,422.93 : x
  2. Step 2: Convert to fraction form
    2,720.55/4,080.83 = 1,422.93/x
  3. Step 3: Cross multiply
    2,720.55x = 4,080.83 × 1,422.93
  4. Step 4: Simplify right side
    2,720.55x = 5,806,728.32
  5. Step 5: Solve for x
    x = 5,806,728.32/2,720.55
  6. Step 6: Final answer
    x = 2,134.40

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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.