Home / 3,117.21-4,677.18-1,656.47

Finding the Fourth Proportional to 3,117.21, 4,677.18 and 1,656.47

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Solution

The fourth proportional to 3,117.21, 4,677.18 and 1,656.47 is: 2,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.21 : 4,677.18 = 1,656.47 : x
  2. Step 2: Convert to fraction form
    3,117.21/4,677.18 = 1,656.47/x
  3. Step 3: Cross multiply
    3,117.21x = 4,677.18 × 1,656.47
  4. Step 4: Simplify right side
    3,117.21x = 7,747,608.35
  5. Step 5: Solve for x
    x = 7,747,608.35/3,117.21
  6. Step 6: Final answer
    x = 2,485.43

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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.