Home / 5,439.69-8,157.51-2,153.25

Finding the Fourth Proportional to 5,439.69, 8,157.51 and 2,153.25

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Solution

The fourth proportional to 5,439.69, 8,157.51 and 2,153.25 is: 3,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.69 : 8,157.51 = 2,153.25 : x
  2. Step 2: Convert to fraction form
    5,439.69/8,157.51 = 2,153.25/x
  3. Step 3: Cross multiply
    5,439.69x = 8,157.51 × 2,153.25
  4. Step 4: Simplify right side
    5,439.69x = 17,565,158.41
  5. Step 5: Solve for x
    x = 17,565,158.41/5,439.69
  6. Step 6: Final answer
    x = 3,229.07

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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.