Home / 3,307.32-4,930.47-3,151.80

Finding the Fourth Proportional to 3,307.32, 4,930.47 and 3,151.80

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Solution

The fourth proportional to 3,307.32, 4,930.47 and 3,151.80 is: 4,698.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.32 : 4,930.47 = 3,151.80 : x
  2. Step 2: Convert to fraction form
    3,307.32/4,930.47 = 3,151.80/x
  3. Step 3: Cross multiply
    3,307.32x = 4,930.47 × 3,151.80
  4. Step 4: Simplify right side
    3,307.32x = 15,539,855.35
  5. Step 5: Solve for x
    x = 15,539,855.35/3,307.32
  6. Step 6: Final answer
    x = 4,698.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.