Home / 3,416.65-4,715.19-1,981.31

Finding the Fourth Proportional to 3,416.65, 4,715.19 and 1,981.31

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Solution

The fourth proportional to 3,416.65, 4,715.19 and 1,981.31 is: 2,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.65 : 4,715.19 = 1,981.31 : x
  2. Step 2: Convert to fraction form
    3,416.65/4,715.19 = 1,981.31/x
  3. Step 3: Cross multiply
    3,416.65x = 4,715.19 × 1,981.31
  4. Step 4: Simplify right side
    3,416.65x = 9,342,229.52
  5. Step 5: Solve for x
    x = 9,342,229.52/3,416.65
  6. Step 6: Final answer
    x = 2,734.33

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1.5x scale

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.