Home / 1,628.24-2,245.28-1,273.55

Finding the Fourth Proportional to 1,628.24, 2,245.28 and 1,273.55

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Solution

The fourth proportional to 1,628.24, 2,245.28 and 1,273.55 is: 1,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.24 : 2,245.28 = 1,273.55 : x
  2. Step 2: Convert to fraction form
    1,628.24/2,245.28 = 1,273.55/x
  3. Step 3: Cross multiply
    1,628.24x = 2,245.28 × 1,273.55
  4. Step 4: Simplify right side
    1,628.24x = 2,859,458.75
  5. Step 5: Solve for x
    x = 2,859,458.75/1,628.24
  6. Step 6: Final answer
    x = 1,756.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.