Home / 5,438.54-8,155.08-2,518.90

Finding the Fourth Proportional to 5,438.54, 8,155.08 and 2,518.90

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Solution

The fourth proportional to 5,438.54, 8,155.08 and 2,518.90 is: 3,777.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.54 : 8,155.08 = 2,518.90 : x
  2. Step 2: Convert to fraction form
    5,438.54/8,155.08 = 2,518.90/x
  3. Step 3: Cross multiply
    5,438.54x = 8,155.08 × 2,518.90
  4. Step 4: Simplify right side
    5,438.54x = 20,541,810.62
  5. Step 5: Solve for x
    x = 20,541,810.62/5,438.54
  6. Step 6: Final answer
    x = 3,777.08

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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.