Home / 5,418.81-7,478.57-3,061.11

Finding the Fourth Proportional to 5,418.81, 7,478.57 and 3,061.11

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Solution

The fourth proportional to 5,418.81, 7,478.57 and 3,061.11 is: 4,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.81 : 7,478.57 = 3,061.11 : x
  2. Step 2: Convert to fraction form
    5,418.81/7,478.57 = 3,061.11/x
  3. Step 3: Cross multiply
    5,418.81x = 7,478.57 × 3,061.11
  4. Step 4: Simplify right side
    5,418.81x = 22,892,688.02
  5. Step 5: Solve for x
    x = 22,892,688.02/5,418.81
  6. Step 6: Final answer
    x = 4,224.67

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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.