Home / 3,627.02-5,428.53-3,120.14

Finding the Fourth Proportional to 3,627.02, 5,428.53 and 3,120.14

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Solution

The fourth proportional to 3,627.02, 5,428.53 and 3,120.14 is: 4,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.02 : 5,428.53 = 3,120.14 : x
  2. Step 2: Convert to fraction form
    3,627.02/5,428.53 = 3,120.14/x
  3. Step 3: Cross multiply
    3,627.02x = 5,428.53 × 3,120.14
  4. Step 4: Simplify right side
    3,627.02x = 16,937,773.59
  5. Step 5: Solve for x
    x = 16,937,773.59/3,627.02
  6. Step 6: Final answer
    x = 4,669.89

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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.