Home / 5,431.21-7,492.44-3,838.13

Finding the Fourth Proportional to 5,431.21, 7,492.44 and 3,838.13

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Solution

The fourth proportional to 5,431.21, 7,492.44 and 3,838.13 is: 5,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.21 : 7,492.44 = 3,838.13 : x
  2. Step 2: Convert to fraction form
    5,431.21/7,492.44 = 3,838.13/x
  3. Step 3: Cross multiply
    5,431.21x = 7,492.44 × 3,838.13
  4. Step 4: Simplify right side
    5,431.21x = 28,756,958.74
  5. Step 5: Solve for x
    x = 28,756,958.74/5,431.21
  6. Step 6: Final answer
    x = 5,294.76

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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.