Home / 5,427.60-7,491.08-3,189.68

Finding the Fourth Proportional to 5,427.60, 7,491.08 and 3,189.68

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Solution

The fourth proportional to 5,427.60, 7,491.08 and 3,189.68 is: 4,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.60 : 7,491.08 = 3,189.68 : x
  2. Step 2: Convert to fraction form
    5,427.60/7,491.08 = 3,189.68/x
  3. Step 3: Cross multiply
    5,427.60x = 7,491.08 × 3,189.68
  4. Step 4: Simplify right side
    5,427.60x = 23,894,148.05
  5. Step 5: Solve for x
    x = 23,894,148.05/5,427.60
  6. Step 6: Final answer
    x = 4,402.34

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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.