Home / 2,005.20-2,754.26-1,655.12

Finding the Fourth Proportional to 2,005.20, 2,754.26 and 1,655.12

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Solution

The fourth proportional to 2,005.20, 2,754.26 and 1,655.12 is: 2,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.20 : 2,754.26 = 1,655.12 : x
  2. Step 2: Convert to fraction form
    2,005.20/2,754.26 = 1,655.12/x
  3. Step 3: Cross multiply
    2,005.20x = 2,754.26 × 1,655.12
  4. Step 4: Simplify right side
    2,005.20x = 4,558,630.81
  5. Step 5: Solve for x
    x = 4,558,630.81/2,005.20
  6. Step 6: Final answer
    x = 2,273.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.