Home / 2,981.00-4,113.76-1,636.63

Finding the Fourth Proportional to 2,981.00, 4,113.76 and 1,636.63

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Solution

The fourth proportional to 2,981.00, 4,113.76 and 1,636.63 is: 2,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.00 : 4,113.76 = 1,636.63 : x
  2. Step 2: Convert to fraction form
    2,981.00/4,113.76 = 1,636.63/x
  3. Step 3: Cross multiply
    2,981.00x = 4,113.76 × 1,636.63
  4. Step 4: Simplify right side
    2,981.00x = 6,732,688.65
  5. Step 5: Solve for x
    x = 6,732,688.65/2,981.00
  6. Step 6: Final answer
    x = 2,258.54

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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.