Home / 5,381.28-8,072.25-1,684.05

Finding the Fourth Proportional to 5,381.28, 8,072.25 and 1,684.05

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Solution

The fourth proportional to 5,381.28, 8,072.25 and 1,684.05 is: 2,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.28 : 8,072.25 = 1,684.05 : x
  2. Step 2: Convert to fraction form
    5,381.28/8,072.25 = 1,684.05/x
  3. Step 3: Cross multiply
    5,381.28x = 8,072.25 × 1,684.05
  4. Step 4: Simplify right side
    5,381.28x = 13,594,072.61
  5. Step 5: Solve for x
    x = 13,594,072.61/5,381.28
  6. Step 6: Final answer
    x = 2,526.18

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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.