Home / 5,385.04-7,431.32-3,396.88

Finding the Fourth Proportional to 5,385.04, 7,431.32 and 3,396.88

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Solution

The fourth proportional to 5,385.04, 7,431.32 and 3,396.88 is: 4,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.04 : 7,431.32 = 3,396.88 : x
  2. Step 2: Convert to fraction form
    5,385.04/7,431.32 = 3,396.88/x
  3. Step 3: Cross multiply
    5,385.04x = 7,431.32 × 3,396.88
  4. Step 4: Simplify right side
    5,385.04x = 25,243,302.28
  5. Step 5: Solve for x
    x = 25,243,302.28/5,385.04
  6. Step 6: Final answer
    x = 4,687.67

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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.