Home / 4,921.98-7,382.27-1,412.28

Finding the Fourth Proportional to 4,921.98, 7,382.27 and 1,412.28

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Solution

The fourth proportional to 4,921.98, 7,382.27 and 1,412.28 is: 2,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.98 : 7,382.27 = 1,412.28 : x
  2. Step 2: Convert to fraction form
    4,921.98/7,382.27 = 1,412.28/x
  3. Step 3: Cross multiply
    4,921.98x = 7,382.27 × 1,412.28
  4. Step 4: Simplify right side
    4,921.98x = 10,425,832.28
  5. Step 5: Solve for x
    x = 10,425,832.28/4,921.98
  6. Step 6: Final answer
    x = 2,118.22

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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.