Home / 5,456.79-7,530.33-3,218.67

Finding the Fourth Proportional to 5,456.79, 7,530.33 and 3,218.67

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Solution

The fourth proportional to 5,456.79, 7,530.33 and 3,218.67 is: 4,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.79 : 7,530.33 = 3,218.67 : x
  2. Step 2: Convert to fraction form
    5,456.79/7,530.33 = 3,218.67/x
  3. Step 3: Cross multiply
    5,456.79x = 7,530.33 × 3,218.67
  4. Step 4: Simplify right side
    5,456.79x = 24,237,647.26
  5. Step 5: Solve for x
    x = 24,237,647.26/5,456.79
  6. Step 6: Final answer
    x = 4,441.74

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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.