Home / 3,720.18-5,580.32-1,528.42

Finding the Fourth Proportional to 3,720.18, 5,580.32 and 1,528.42

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Solution

The fourth proportional to 3,720.18, 5,580.32 and 1,528.42 is: 2,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.18 : 5,580.32 = 1,528.42 : x
  2. Step 2: Convert to fraction form
    3,720.18/5,580.32 = 1,528.42/x
  3. Step 3: Cross multiply
    3,720.18x = 5,580.32 × 1,528.42
  4. Step 4: Simplify right side
    3,720.18x = 8,529,072.69
  5. Step 5: Solve for x
    x = 8,529,072.69/3,720.18
  6. Step 6: Final answer
    x = 2,292.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.