Home / 5,459.79-7,534.47-3,221.67

Finding the Fourth Proportional to 5,459.79, 7,534.47 and 3,221.67

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Solution

The fourth proportional to 5,459.79, 7,534.47 and 3,221.67 is: 4,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.79 : 7,534.47 = 3,221.67 : x
  2. Step 2: Convert to fraction form
    5,459.79/7,534.47 = 3,221.67/x
  3. Step 3: Cross multiply
    5,459.79x = 7,534.47 × 3,221.67
  4. Step 4: Simplify right side
    5,459.79x = 24,273,575.96
  5. Step 5: Solve for x
    x = 24,273,575.96/5,459.79
  6. Step 6: Final answer
    x = 4,445.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.