Home / 5,679.30-8,520.09-2,903.70

Finding the Fourth Proportional to 5,679.30, 8,520.09 and 2,903.70

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Solution

The fourth proportional to 5,679.30, 8,520.09 and 2,903.70 is: 4,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.30 : 8,520.09 = 2,903.70 : x
  2. Step 2: Convert to fraction form
    5,679.30/8,520.09 = 2,903.70/x
  3. Step 3: Cross multiply
    5,679.30x = 8,520.09 × 2,903.70
  4. Step 4: Simplify right side
    5,679.30x = 24,739,785.33
  5. Step 5: Solve for x
    x = 24,739,785.33/5,679.30
  6. Step 6: Final answer
    x = 4,356.13

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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.