Home / 3,529.80-5,294.70-2,914.20

Finding the Fourth Proportional to 3,529.80, 5,294.70 and 2,914.20

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Solution

The fourth proportional to 3,529.80, 5,294.70 and 2,914.20 is: 4,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.80 : 5,294.70 = 2,914.20 : x
  2. Step 2: Convert to fraction form
    3,529.80/5,294.70 = 2,914.20/x
  3. Step 3: Cross multiply
    3,529.80x = 5,294.70 × 2,914.20
  4. Step 4: Simplify right side
    3,529.80x = 15,429,814.74
  5. Step 5: Solve for x
    x = 15,429,814.74/3,529.80
  6. Step 6: Final answer
    x = 4,371.30

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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.