Home / 3,639.29-5,458.59-1,173.98

Finding the Fourth Proportional to 3,639.29, 5,458.59 and 1,173.98

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Solution

The fourth proportional to 3,639.29, 5,458.59 and 1,173.98 is: 1,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.29 : 5,458.59 = 1,173.98 : x
  2. Step 2: Convert to fraction form
    3,639.29/5,458.59 = 1,173.98/x
  3. Step 3: Cross multiply
    3,639.29x = 5,458.59 × 1,173.98
  4. Step 4: Simplify right side
    3,639.29x = 6,408,248.20
  5. Step 5: Solve for x
    x = 6,408,248.20/3,639.29
  6. Step 6: Final answer
    x = 1,760.85

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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.