Home / 4,782.08-7,173.12-2,187.20

Finding the Fourth Proportional to 4,782.08, 7,173.12 and 2,187.20

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Solution

The fourth proportional to 4,782.08, 7,173.12 and 2,187.20 is: 3,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.08 : 7,173.12 = 2,187.20 : x
  2. Step 2: Convert to fraction form
    4,782.08/7,173.12 = 2,187.20/x
  3. Step 3: Cross multiply
    4,782.08x = 7,173.12 × 2,187.20
  4. Step 4: Simplify right side
    4,782.08x = 15,689,048.06
  5. Step 5: Solve for x
    x = 15,689,048.06/4,782.08
  6. Step 6: Final answer
    x = 3,280.80

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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.