Home / 2,614.76-3,916.20-1,316.60

Finding the Fourth Proportional to 2,614.76, 3,916.20 and 1,316.60

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Solution

The fourth proportional to 2,614.76, 3,916.20 and 1,316.60 is: 1,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.76 : 3,916.20 = 1,316.60 : x
  2. Step 2: Convert to fraction form
    2,614.76/3,916.20 = 1,316.60/x
  3. Step 3: Cross multiply
    2,614.76x = 3,916.20 × 1,316.60
  4. Step 4: Simplify right side
    2,614.76x = 5,156,068.92
  5. Step 5: Solve for x
    x = 5,156,068.92/2,614.76
  6. Step 6: Final answer
    x = 1,971.91

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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.