Home / 5,421.94-8,132.84-1,724.44

Finding the Fourth Proportional to 5,421.94, 8,132.84 and 1,724.44

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Solution

The fourth proportional to 5,421.94, 8,132.84 and 1,724.44 is: 2,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.94 : 8,132.84 = 1,724.44 : x
  2. Step 2: Convert to fraction form
    5,421.94/8,132.84 = 1,724.44/x
  3. Step 3: Cross multiply
    5,421.94x = 8,132.84 × 1,724.44
  4. Step 4: Simplify right side
    5,421.94x = 14,024,594.61
  5. Step 5: Solve for x
    x = 14,024,594.61/5,421.94
  6. Step 6: Final answer
    x = 2,586.64

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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.