Home / 5,438.68-8,155.32-2,664.16

Finding the Fourth Proportional to 5,438.68, 8,155.32 and 2,664.16

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Solution

The fourth proportional to 5,438.68, 8,155.32 and 2,664.16 is: 3,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.68 : 8,155.32 = 2,664.16 : x
  2. Step 2: Convert to fraction form
    5,438.68/8,155.32 = 2,664.16/x
  3. Step 3: Cross multiply
    5,438.68x = 8,155.32 × 2,664.16
  4. Step 4: Simplify right side
    5,438.68x = 21,727,077.33
  5. Step 5: Solve for x
    x = 21,727,077.33/5,438.68
  6. Step 6: Final answer
    x = 3,994.92

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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.