Home / 5,461.12-7,539.38-3,783.81

Finding the Fourth Proportional to 5,461.12, 7,539.38 and 3,783.81

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Solution

The fourth proportional to 5,461.12, 7,539.38 and 3,783.81 is: 5,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.12 : 7,539.38 = 3,783.81 : x
  2. Step 2: Convert to fraction form
    5,461.12/7,539.38 = 3,783.81/x
  3. Step 3: Cross multiply
    5,461.12x = 7,539.38 × 3,783.81
  4. Step 4: Simplify right side
    5,461.12x = 28,527,604.98
  5. Step 5: Solve for x
    x = 28,527,604.98/5,461.12
  6. Step 6: Final answer
    x = 5,223.76

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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.