Home / 3,117.26-4,678.62-2,630.66

Finding the Fourth Proportional to 3,117.26, 4,678.62 and 2,630.66

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Solution

The fourth proportional to 3,117.26, 4,678.62 and 2,630.66 is: 3,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.26 : 4,678.62 = 2,630.66 : x
  2. Step 2: Convert to fraction form
    3,117.26/4,678.62 = 2,630.66/x
  3. Step 3: Cross multiply
    3,117.26x = 4,678.62 × 2,630.66
  4. Step 4: Simplify right side
    3,117.26x = 12,307,858.49
  5. Step 5: Solve for x
    x = 12,307,858.49/3,117.26
  6. Step 6: Final answer
    x = 3,948.29

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1.5x scale

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.