Home / 3,971.68-5,475.36-2,572

Finding the Fourth Proportional to 3,971.68, 5,475.36 and 2,572

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Solution

The fourth proportional to 3,971.68, 5,475.36 and 2,572 is: 3,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.68 : 5,475.36 = 2,572 : x
  2. Step 2: Convert to fraction form
    3,971.68/5,475.36 = 2,572/x
  3. Step 3: Cross multiply
    3,971.68x = 5,475.36 × 2,572
  4. Step 4: Simplify right side
    3,971.68x = 14,082,625.92
  5. Step 5: Solve for x
    x = 14,082,625.92/3,971.68
  6. Step 6: Final answer
    x = 3,545.76

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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.