Home / 5,415.52-8,124.40-2,817.76

Finding the Fourth Proportional to 5,415.52, 8,124.40 and 2,817.76

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Solution

The fourth proportional to 5,415.52, 8,124.40 and 2,817.76 is: 4,227.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.52 : 8,124.40 = 2,817.76 : x
  2. Step 2: Convert to fraction form
    5,415.52/8,124.40 = 2,817.76/x
  3. Step 3: Cross multiply
    5,415.52x = 8,124.40 × 2,817.76
  4. Step 4: Simplify right side
    5,415.52x = 22,892,609.34
  5. Step 5: Solve for x
    x = 22,892,609.34/5,415.52
  6. Step 6: Final answer
    x = 4,227.22

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1.5x scale

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.