Home / 5,552.40-8,328.64-2,087.20

Finding the Fourth Proportional to 5,552.40, 8,328.64 and 2,087.20

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Solution

The fourth proportional to 5,552.40, 8,328.64 and 2,087.20 is: 3,130.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,552.40 : 8,328.64 = 2,087.20 : x
  2. Step 2: Convert to fraction form
    5,552.40/8,328.64 = 2,087.20/x
  3. Step 3: Cross multiply
    5,552.40x = 8,328.64 × 2,087.20
  4. Step 4: Simplify right side
    5,552.40x = 17,383,537.41
  5. Step 5: Solve for x
    x = 17,383,537.41/5,552.40
  6. Step 6: Final answer
    x = 3,130.82

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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.