Home / 5,427.54-7,490.05-3,189.51

Finding the Fourth Proportional to 5,427.54, 7,490.05 and 3,189.51

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Solution

The fourth proportional to 5,427.54, 7,490.05 and 3,189.51 is: 4,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.54 : 7,490.05 = 3,189.51 : x
  2. Step 2: Convert to fraction form
    5,427.54/7,490.05 = 3,189.51/x
  3. Step 3: Cross multiply
    5,427.54x = 7,490.05 × 3,189.51
  4. Step 4: Simplify right side
    5,427.54x = 23,889,581.40
  5. Step 5: Solve for x
    x = 23,889,581.40/5,427.54
  6. Step 6: Final answer
    x = 4,401.55

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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.