Home / 2,916.77-4,369.33-1,990.04

Finding the Fourth Proportional to 2,916.77, 4,369.33 and 1,990.04

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Solution

The fourth proportional to 2,916.77, 4,369.33 and 1,990.04 is: 2,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.77 : 4,369.33 = 1,990.04 : x
  2. Step 2: Convert to fraction form
    2,916.77/4,369.33 = 1,990.04/x
  3. Step 3: Cross multiply
    2,916.77x = 4,369.33 × 1,990.04
  4. Step 4: Simplify right side
    2,916.77x = 8,695,114.65
  5. Step 5: Solve for x
    x = 8,695,114.65/2,916.77
  6. Step 6: Final answer
    x = 2,981.07

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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.