Home / 5,390.75-7,439.40-3,265.83

Finding the Fourth Proportional to 5,390.75, 7,439.40 and 3,265.83

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Solution

The fourth proportional to 5,390.75, 7,439.40 and 3,265.83 is: 4,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.75 : 7,439.40 = 3,265.83 : x
  2. Step 2: Convert to fraction form
    5,390.75/7,439.40 = 3,265.83/x
  3. Step 3: Cross multiply
    5,390.75x = 7,439.40 × 3,265.83
  4. Step 4: Simplify right side
    5,390.75x = 24,295,815.70
  5. Step 5: Solve for x
    x = 24,295,815.70/5,390.75
  6. Step 6: Final answer
    x = 4,506.94

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Double scale
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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.