Home / 5,729.03-7,903.70-3,490.09

Finding the Fourth Proportional to 5,729.03, 7,903.70 and 3,490.09

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Solution

The fourth proportional to 5,729.03, 7,903.70 and 3,490.09 is: 4,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.03 : 7,903.70 = 3,490.09 : x
  2. Step 2: Convert to fraction form
    5,729.03/7,903.70 = 3,490.09/x
  3. Step 3: Cross multiply
    5,729.03x = 7,903.70 × 3,490.09
  4. Step 4: Simplify right side
    5,729.03x = 27,584,598.98
  5. Step 5: Solve for x
    x = 27,584,598.98/5,729.03
  6. Step 6: Final answer
    x = 4,814.88

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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.