Home / 5,439.84-8,158.20-2,152.32

Finding the Fourth Proportional to 5,439.84, 8,158.20 and 2,152.32

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Solution

The fourth proportional to 5,439.84, 8,158.20 and 2,152.32 is: 3,227.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.84 : 8,158.20 = 2,152.32 : x
  2. Step 2: Convert to fraction form
    5,439.84/8,158.20 = 2,152.32/x
  3. Step 3: Cross multiply
    5,439.84x = 8,158.20 × 2,152.32
  4. Step 4: Simplify right side
    5,439.84x = 17,559,057.02
  5. Step 5: Solve for x
    x = 17,559,057.02/5,439.84
  6. Step 6: Final answer
    x = 3,227.86

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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.