Home / 5,084.81-7,627.14-1,387.11

Finding the Fourth Proportional to 5,084.81, 7,627.14 and 1,387.11

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Solution

The fourth proportional to 5,084.81, 7,627.14 and 1,387.11 is: 2,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,084.81 : 7,627.14 = 1,387.11 : x
  2. Step 2: Convert to fraction form
    5,084.81/7,627.14 = 1,387.11/x
  3. Step 3: Cross multiply
    5,084.81x = 7,627.14 × 1,387.11
  4. Step 4: Simplify right side
    5,084.81x = 10,579,682.17
  5. Step 5: Solve for x
    x = 10,579,682.17/5,084.81
  6. Step 6: Final answer
    x = 2,080.64

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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.