Home / 5,409.34-8,115.44-1,711.63

Finding the Fourth Proportional to 5,409.34, 8,115.44 and 1,711.63

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Solution

The fourth proportional to 5,409.34, 8,115.44 and 1,711.63 is: 2,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.34 : 8,115.44 = 1,711.63 : x
  2. Step 2: Convert to fraction form
    5,409.34/8,115.44 = 1,711.63/x
  3. Step 3: Cross multiply
    5,409.34x = 8,115.44 × 1,711.63
  4. Step 4: Simplify right side
    5,409.34x = 13,890,630.57
  5. Step 5: Solve for x
    x = 13,890,630.57/5,409.34
  6. Step 6: Final answer
    x = 2,567.90

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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.