Home / 5,340.45-7,369.78-3,102.42

Finding the Fourth Proportional to 5,340.45, 7,369.78 and 3,102.42

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Solution

The fourth proportional to 5,340.45, 7,369.78 and 3,102.42 is: 4,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.45 : 7,369.78 = 3,102.42 : x
  2. Step 2: Convert to fraction form
    5,340.45/7,369.78 = 3,102.42/x
  3. Step 3: Cross multiply
    5,340.45x = 7,369.78 × 3,102.42
  4. Step 4: Simplify right side
    5,340.45x = 22,864,152.87
  5. Step 5: Solve for x
    x = 22,864,152.87/5,340.45
  6. Step 6: Final answer
    x = 4,281.32

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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.