Home / 4,821.24-7,230.36-2,187.12

Finding the Fourth Proportional to 4,821.24, 7,230.36 and 2,187.12

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Solution

The fourth proportional to 4,821.24, 7,230.36 and 2,187.12 is: 3,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.24 : 7,230.36 = 2,187.12 : x
  2. Step 2: Convert to fraction form
    4,821.24/7,230.36 = 2,187.12/x
  3. Step 3: Cross multiply
    4,821.24x = 7,230.36 × 2,187.12
  4. Step 4: Simplify right side
    4,821.24x = 15,813,664.96
  5. Step 5: Solve for x
    x = 15,813,664.96/4,821.24
  6. Step 6: Final answer
    x = 3,280.00

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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.