Home / 5,427.91-7,490.82-3,190.51

Finding the Fourth Proportional to 5,427.91, 7,490.82 and 3,190.51

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Solution

The fourth proportional to 5,427.91, 7,490.82 and 3,190.51 is: 4,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.91 : 7,490.82 = 3,190.51 : x
  2. Step 2: Convert to fraction form
    5,427.91/7,490.82 = 3,190.51/x
  3. Step 3: Cross multiply
    5,427.91x = 7,490.82 × 3,190.51
  4. Step 4: Simplify right side
    5,427.91x = 23,899,536.12
  5. Step 5: Solve for x
    x = 23,899,536.12/5,427.91
  6. Step 6: Final answer
    x = 4,403.08

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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.