Home / 7,887.28-11,830.20-2,692.84

Finding the Fourth Proportional to 7,887.28, 11,830.20 and 2,692.84

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Solution

The fourth proportional to 7,887.28, 11,830.20 and 2,692.84 is: 4,039.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.28 : 11,830.20 = 2,692.84 : x
  2. Step 2: Convert to fraction form
    7,887.28/11,830.20 = 2,692.84/x
  3. Step 3: Cross multiply
    7,887.28x = 11,830.20 × 2,692.84
  4. Step 4: Simplify right side
    7,887.28x = 31,856,835.77
  5. Step 5: Solve for x
    x = 31,856,835.77/7,887.28
  6. Step 6: Final answer
    x = 4,039.01

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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.