Home / 3,087.45-4,633.61-1,140.21

Finding the Fourth Proportional to 3,087.45, 4,633.61 and 1,140.21

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Solution

The fourth proportional to 3,087.45, 4,633.61 and 1,140.21 is: 1,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.45 : 4,633.61 = 1,140.21 : x
  2. Step 2: Convert to fraction form
    3,087.45/4,633.61 = 1,140.21/x
  3. Step 3: Cross multiply
    3,087.45x = 4,633.61 × 1,140.21
  4. Step 4: Simplify right side
    3,087.45x = 5,283,282.76
  5. Step 5: Solve for x
    x = 5,283,282.76/3,087.45
  6. Step 6: Final answer
    x = 1,711.21

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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.