Home / 5,709.24-7,877.70-3,190.80

Finding the Fourth Proportional to 5,709.24, 7,877.70 and 3,190.80

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Solution

The fourth proportional to 5,709.24, 7,877.70 and 3,190.80 is: 4,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.24 : 7,877.70 = 3,190.80 : x
  2. Step 2: Convert to fraction form
    5,709.24/7,877.70 = 3,190.80/x
  3. Step 3: Cross multiply
    5,709.24x = 7,877.70 × 3,190.80
  4. Step 4: Simplify right side
    5,709.24x = 25,136,165.16
  5. Step 5: Solve for x
    x = 25,136,165.16/5,709.24
  6. Step 6: Final answer
    x = 4,402.72

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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.