Home / 5,661.40-8,488.68-2,372.80

Finding the Fourth Proportional to 5,661.40, 8,488.68 and 2,372.80

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Solution

The fourth proportional to 5,661.40, 8,488.68 and 2,372.80 is: 3,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.40 : 8,488.68 = 2,372.80 : x
  2. Step 2: Convert to fraction form
    5,661.40/8,488.68 = 2,372.80/x
  3. Step 3: Cross multiply
    5,661.40x = 8,488.68 × 2,372.80
  4. Step 4: Simplify right side
    5,661.40x = 20,141,939.90
  5. Step 5: Solve for x
    x = 20,141,939.90/5,661.40
  6. Step 6: Final answer
    x = 3,557.77

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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.