Home / 5,376.38-7,419.40-3,280.50

Finding the Fourth Proportional to 5,376.38, 7,419.40 and 3,280.50

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Solution

The fourth proportional to 5,376.38, 7,419.40 and 3,280.50 is: 4,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.38 : 7,419.40 = 3,280.50 : x
  2. Step 2: Convert to fraction form
    5,376.38/7,419.40 = 3,280.50/x
  3. Step 3: Cross multiply
    5,376.38x = 7,419.40 × 3,280.50
  4. Step 4: Simplify right side
    5,376.38x = 24,339,333.50
  5. Step 5: Solve for x
    x = 24,339,333.50/5,376.38
  6. Step 6: Final answer
    x = 4,527.09

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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.