Home / 5,455.37-8,187.13-2,124.14

Finding the Fourth Proportional to 5,455.37, 8,187.13 and 2,124.14

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Solution

The fourth proportional to 5,455.37, 8,187.13 and 2,124.14 is: 3,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.37 : 8,187.13 = 2,124.14 : x
  2. Step 2: Convert to fraction form
    5,455.37/8,187.13 = 2,124.14/x
  3. Step 3: Cross multiply
    5,455.37x = 8,187.13 × 2,124.14
  4. Step 4: Simplify right side
    5,455.37x = 17,390,610.32
  5. Step 5: Solve for x
    x = 17,390,610.32/5,455.37
  6. Step 6: Final answer
    x = 3,187.80

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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.