Home / 5,325.72-7,342.32-3,730.21

Finding the Fourth Proportional to 5,325.72, 7,342.32 and 3,730.21

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Solution

The fourth proportional to 5,325.72, 7,342.32 and 3,730.21 is: 5,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.72 : 7,342.32 = 3,730.21 : x
  2. Step 2: Convert to fraction form
    5,325.72/7,342.32 = 3,730.21/x
  3. Step 3: Cross multiply
    5,325.72x = 7,342.32 × 3,730.21
  4. Step 4: Simplify right side
    5,325.72x = 27,388,395.49
  5. Step 5: Solve for x
    x = 27,388,395.49/5,325.72
  6. Step 6: Final answer
    x = 5,142.67

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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.