Home / 3,986.47-5,500.49-2,307.77

Finding the Fourth Proportional to 3,986.47, 5,500.49 and 2,307.77

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Solution

The fourth proportional to 3,986.47, 5,500.49 and 2,307.77 is: 3,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.47 : 5,500.49 = 2,307.77 : x
  2. Step 2: Convert to fraction form
    3,986.47/5,500.49 = 2,307.77/x
  3. Step 3: Cross multiply
    3,986.47x = 5,500.49 × 2,307.77
  4. Step 4: Simplify right side
    3,986.47x = 12,693,865.81
  5. Step 5: Solve for x
    x = 12,693,865.81/3,986.47
  6. Step 6: Final answer
    x = 3,184.24

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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.