Home / 1,723.98-2,378.41-1,126.28

Finding the Fourth Proportional to 1,723.98, 2,378.41 and 1,126.28

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Solution

The fourth proportional to 1,723.98, 2,378.41 and 1,126.28 is: 1,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.98 : 2,378.41 = 1,126.28 : x
  2. Step 2: Convert to fraction form
    1,723.98/2,378.41 = 1,126.28/x
  3. Step 3: Cross multiply
    1,723.98x = 2,378.41 × 1,126.28
  4. Step 4: Simplify right side
    1,723.98x = 2,678,758.75
  5. Step 5: Solve for x
    x = 2,678,758.75/1,723.98
  6. Step 6: Final answer
    x = 1,553.82

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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.