Home / 5,415.86-8,123.84-2,295.47

Finding the Fourth Proportional to 5,415.86, 8,123.84 and 2,295.47

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Solution

The fourth proportional to 5,415.86, 8,123.84 and 2,295.47 is: 3,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.86 : 8,123.84 = 2,295.47 : x
  2. Step 2: Convert to fraction form
    5,415.86/8,123.84 = 2,295.47/x
  3. Step 3: Cross multiply
    5,415.86x = 8,123.84 × 2,295.47
  4. Step 4: Simplify right side
    5,415.86x = 18,648,031.00
  5. Step 5: Solve for x
    x = 18,648,031.00/5,415.86
  6. Step 6: Final answer
    x = 3,443.23

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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.