Home / 5,172.13-7,758.92-1,886.77

Finding the Fourth Proportional to 5,172.13, 7,758.92 and 1,886.77

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Solution

The fourth proportional to 5,172.13, 7,758.92 and 1,886.77 is: 2,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.13 : 7,758.92 = 1,886.77 : x
  2. Step 2: Convert to fraction form
    5,172.13/7,758.92 = 1,886.77/x
  3. Step 3: Cross multiply
    5,172.13x = 7,758.92 × 1,886.77
  4. Step 4: Simplify right side
    5,172.13x = 14,639,297.49
  5. Step 5: Solve for x
    x = 14,639,297.49/5,172.13
  6. Step 6: Final answer
    x = 2,830.42

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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.