Home / 5,719.79-8,578.38-2,905.77

Finding the Fourth Proportional to 5,719.79, 8,578.38 and 2,905.77

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Solution

The fourth proportional to 5,719.79, 8,578.38 and 2,905.77 is: 4,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.79 : 8,578.38 = 2,905.77 : x
  2. Step 2: Convert to fraction form
    5,719.79/8,578.38 = 2,905.77/x
  3. Step 3: Cross multiply
    5,719.79x = 8,578.38 × 2,905.77
  4. Step 4: Simplify right side
    5,719.79x = 24,926,799.25
  5. Step 5: Solve for x
    x = 24,926,799.25/5,719.79
  6. Step 6: Final answer
    x = 4,358.00

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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.