Home / 4,815.75-7,223.63-1,353

Finding the Fourth Proportional to 4,815.75, 7,223.63 and 1,353

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Solution

The fourth proportional to 4,815.75, 7,223.63 and 1,353 is: 2,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.75 : 7,223.63 = 1,353 : x
  2. Step 2: Convert to fraction form
    4,815.75/7,223.63 = 1,353/x
  3. Step 3: Cross multiply
    4,815.75x = 7,223.63 × 1,353
  4. Step 4: Simplify right side
    4,815.75x = 9,773,571.39
  5. Step 5: Solve for x
    x = 9,773,571.39/4,815.75
  6. Step 6: Final answer
    x = 2,029.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.