Home / 3,155.25-4,734.22-1,307.71

Finding the Fourth Proportional to 3,155.25, 4,734.22 and 1,307.71

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Solution

The fourth proportional to 3,155.25, 4,734.22 and 1,307.71 is: 1,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.25 : 4,734.22 = 1,307.71 : x
  2. Step 2: Convert to fraction form
    3,155.25/4,734.22 = 1,307.71/x
  3. Step 3: Cross multiply
    3,155.25x = 4,734.22 × 1,307.71
  4. Step 4: Simplify right side
    3,155.25x = 6,190,971.73
  5. Step 5: Solve for x
    x = 6,190,971.73/3,155.25
  6. Step 6: Final answer
    x = 1,962.12

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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.