Home / 5,509.32-8,261.15-2,221.53

Finding the Fourth Proportional to 5,509.32, 8,261.15 and 2,221.53

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Solution

The fourth proportional to 5,509.32, 8,261.15 and 2,221.53 is: 3,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.32 : 8,261.15 = 2,221.53 : x
  2. Step 2: Convert to fraction form
    5,509.32/8,261.15 = 2,221.53/x
  3. Step 3: Cross multiply
    5,509.32x = 8,261.15 × 2,221.53
  4. Step 4: Simplify right side
    5,509.32x = 18,352,381.45
  5. Step 5: Solve for x
    x = 18,352,381.45/5,509.32
  6. Step 6: Final answer
    x = 3,331.15

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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.