Home / 5,445.72-8,171.53-4,215.53

Finding the Fourth Proportional to 5,445.72, 8,171.53 and 4,215.53

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Solution

The fourth proportional to 5,445.72, 8,171.53 and 4,215.53 is: 6,325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.72 : 8,171.53 = 4,215.53 : x
  2. Step 2: Convert to fraction form
    5,445.72/8,171.53 = 4,215.53/x
  3. Step 3: Cross multiply
    5,445.72x = 8,171.53 × 4,215.53
  4. Step 4: Simplify right side
    5,445.72x = 34,447,329.86
  5. Step 5: Solve for x
    x = 34,447,329.86/5,445.72
  6. Step 6: Final answer
    x = 6,325.58

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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.