Home / 5,555.36-8,329.11-2,780.04

Finding the Fourth Proportional to 5,555.36, 8,329.11 and 2,780.04

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Solution

The fourth proportional to 5,555.36, 8,329.11 and 2,780.04 is: 4,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.36 : 8,329.11 = 2,780.04 : x
  2. Step 2: Convert to fraction form
    5,555.36/8,329.11 = 2,780.04/x
  3. Step 3: Cross multiply
    5,555.36x = 8,329.11 × 2,780.04
  4. Step 4: Simplify right side
    5,555.36x = 23,155,258.96
  5. Step 5: Solve for x
    x = 23,155,258.96/5,555.36
  6. Step 6: Final answer
    x = 4,168.10

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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.