Home / 4,045.28-5,591.39-3,689.87

Finding the Fourth Proportional to 4,045.28, 5,591.39 and 3,689.87

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Solution

The fourth proportional to 4,045.28, 5,591.39 and 3,689.87 is: 5,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,045.28 : 5,591.39 = 3,689.87 : x
  2. Step 2: Convert to fraction form
    4,045.28/5,591.39 = 3,689.87/x
  3. Step 3: Cross multiply
    4,045.28x = 5,591.39 × 3,689.87
  4. Step 4: Simplify right side
    4,045.28x = 20,631,455.81
  5. Step 5: Solve for x
    x = 20,631,455.81/4,045.28
  6. Step 6: Final answer
    x = 5,100.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.