Home / 5,428.17-7,492.34-3,190.77

Finding the Fourth Proportional to 5,428.17, 7,492.34 and 3,190.77

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Solution

The fourth proportional to 5,428.17, 7,492.34 and 3,190.77 is: 4,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.17 : 7,492.34 = 3,190.77 : x
  2. Step 2: Convert to fraction form
    5,428.17/7,492.34 = 3,190.77/x
  3. Step 3: Cross multiply
    5,428.17x = 7,492.34 × 3,190.77
  4. Step 4: Simplify right side
    5,428.17x = 23,906,341.68
  5. Step 5: Solve for x
    x = 23,906,341.68/5,428.17
  6. Step 6: Final answer
    x = 4,404.13

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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.