Home / 7,192.88-10,785.00-2,812.40

Finding the Fourth Proportional to 7,192.88, 10,785.00 and 2,812.40

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Solution

The fourth proportional to 7,192.88, 10,785.00 and 2,812.40 is: 4,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.88 : 10,785.00 = 2,812.40 : x
  2. Step 2: Convert to fraction form
    7,192.88/10,785.00 = 2,812.40/x
  3. Step 3: Cross multiply
    7,192.88x = 10,785.00 × 2,812.40
  4. Step 4: Simplify right side
    7,192.88x = 30,331,692.98
  5. Step 5: Solve for x
    x = 30,331,692.98/7,192.88
  6. Step 6: Final answer
    x = 4,216.91

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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.