Home / 5,322.12-7,985.76-3,772.08

Finding the Fourth Proportional to 5,322.12, 7,985.76 and 3,772.08

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Solution

The fourth proportional to 5,322.12, 7,985.76 and 3,772.08 is: 5,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322.12 : 7,985.76 = 3,772.08 : x
  2. Step 2: Convert to fraction form
    5,322.12/7,985.76 = 3,772.08/x
  3. Step 3: Cross multiply
    5,322.12x = 7,985.76 × 3,772.08
  4. Step 4: Simplify right side
    5,322.12x = 30,122,925.58
  5. Step 5: Solve for x
    x = 30,122,925.58/5,322.12
  6. Step 6: Final answer
    x = 5,659.95

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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.