Home / 5,675.20-8,512.12-1,977.12

Finding the Fourth Proportional to 5,675.20, 8,512.12 and 1,977.12

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Solution

The fourth proportional to 5,675.20, 8,512.12 and 1,977.12 is: 2,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.20 : 8,512.12 = 1,977.12 : x
  2. Step 2: Convert to fraction form
    5,675.20/8,512.12 = 1,977.12/x
  3. Step 3: Cross multiply
    5,675.20x = 8,512.12 × 1,977.12
  4. Step 4: Simplify right side
    5,675.20x = 16,829,482.69
  5. Step 5: Solve for x
    x = 16,829,482.69/5,675.20
  6. Step 6: Final answer
    x = 2,965.44

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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.