Home / 5,445.59-8,168.75-2,158.67

Finding the Fourth Proportional to 5,445.59, 8,168.75 and 2,158.67

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Solution

The fourth proportional to 5,445.59, 8,168.75 and 2,158.67 is: 3,238.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.59 : 8,168.75 = 2,158.67 : x
  2. Step 2: Convert to fraction form
    5,445.59/8,168.75 = 2,158.67/x
  3. Step 3: Cross multiply
    5,445.59x = 8,168.75 × 2,158.67
  4. Step 4: Simplify right side
    5,445.59x = 17,633,661.38
  5. Step 5: Solve for x
    x = 17,633,661.38/5,445.59
  6. Step 6: Final answer
    x = 3,238.16

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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.