Home / 5,083.81-7,625.64-1,386.11

Finding the Fourth Proportional to 5,083.81, 7,625.64 and 1,386.11

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Solution

The fourth proportional to 5,083.81, 7,625.64 and 1,386.11 is: 2,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.81 : 7,625.64 = 1,386.11 : x
  2. Step 2: Convert to fraction form
    5,083.81/7,625.64 = 1,386.11/x
  3. Step 3: Cross multiply
    5,083.81x = 7,625.64 × 1,386.11
  4. Step 4: Simplify right side
    5,083.81x = 10,570,000.12
  5. Step 5: Solve for x
    x = 10,570,000.12/5,083.81
  6. Step 6: Final answer
    x = 2,079.15

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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.