Home / 3,316.76-4,971.78-2,085.04

Finding the Fourth Proportional to 3,316.76, 4,971.78 and 2,085.04

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Solution

The fourth proportional to 3,316.76, 4,971.78 and 2,085.04 is: 3,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.76 : 4,971.78 = 2,085.04 : x
  2. Step 2: Convert to fraction form
    3,316.76/4,971.78 = 2,085.04/x
  3. Step 3: Cross multiply
    3,316.76x = 4,971.78 × 2,085.04
  4. Step 4: Simplify right side
    3,316.76x = 10,366,360.17
  5. Step 5: Solve for x
    x = 10,366,360.17/3,316.76
  6. Step 6: Final answer
    x = 3,125.45

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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.