Home / 5,815.21-8,723.10-1,655.51

Finding the Fourth Proportional to 5,815.21, 8,723.10 and 1,655.51

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Solution

The fourth proportional to 5,815.21, 8,723.10 and 1,655.51 is: 2,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.21 : 8,723.10 = 1,655.51 : x
  2. Step 2: Convert to fraction form
    5,815.21/8,723.10 = 1,655.51/x
  3. Step 3: Cross multiply
    5,815.21x = 8,723.10 × 1,655.51
  4. Step 4: Simplify right side
    5,815.21x = 14,441,179.28
  5. Step 5: Solve for x
    x = 14,441,179.28/5,815.21
  6. Step 6: Final answer
    x = 2,483.35

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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.