Home / 5,880-8,821.29-1,720.36

Finding the Fourth Proportional to 5,880, 8,821.29 and 1,720.36

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Solution

The fourth proportional to 5,880, 8,821.29 and 1,720.36 is: 2,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880 : 8,821.29 = 1,720.36 : x
  2. Step 2: Convert to fraction form
    5,880/8,821.29 = 1,720.36/x
  3. Step 3: Cross multiply
    5,880x = 8,821.29 × 1,720.36
  4. Step 4: Simplify right side
    5,880x = 15,175,794.46
  5. Step 5: Solve for x
    x = 15,175,794.46/5,880
  6. Step 6: Final answer
    x = 2,580.92

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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.