Home / 4,745.79-7,118.69-2,810.30

Finding the Fourth Proportional to 4,745.79, 7,118.69 and 2,810.30

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Solution

The fourth proportional to 4,745.79, 7,118.69 and 2,810.30 is: 4,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.79 : 7,118.69 = 2,810.30 : x
  2. Step 2: Convert to fraction form
    4,745.79/7,118.69 = 2,810.30/x
  3. Step 3: Cross multiply
    4,745.79x = 7,118.69 × 2,810.30
  4. Step 4: Simplify right side
    4,745.79x = 20,005,604.86
  5. Step 5: Solve for x
    x = 20,005,604.86/4,745.79
  6. Step 6: Final answer
    x = 4,215.44

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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.