Home / 5,917.51-8,878.76-2,219.20

Finding the Fourth Proportional to 5,917.51, 8,878.76 and 2,219.20

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Solution

The fourth proportional to 5,917.51, 8,878.76 and 2,219.20 is: 3,329.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.51 : 8,878.76 = 2,219.20 : x
  2. Step 2: Convert to fraction form
    5,917.51/8,878.76 = 2,219.20/x
  3. Step 3: Cross multiply
    5,917.51x = 8,878.76 × 2,219.20
  4. Step 4: Simplify right side
    5,917.51x = 19,703,731.70
  5. Step 5: Solve for x
    x = 19,703,731.70/5,917.51
  6. Step 6: Final answer
    x = 3,329.74

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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.