Home / 3,639.45-5,459.13-1,557.69

Finding the Fourth Proportional to 3,639.45, 5,459.13 and 1,557.69

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Solution

The fourth proportional to 3,639.45, 5,459.13 and 1,557.69 is: 2,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.45 : 5,459.13 = 1,557.69 : x
  2. Step 2: Convert to fraction form
    3,639.45/5,459.13 = 1,557.69/x
  3. Step 3: Cross multiply
    3,639.45x = 5,459.13 × 1,557.69
  4. Step 4: Simplify right side
    3,639.45x = 8,503,632.21
  5. Step 5: Solve for x
    x = 8,503,632.21/3,639.45
  6. Step 6: Final answer
    x = 2,336.52

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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.