Home / 5,190.30-7,785.45-2,274.30

Finding the Fourth Proportional to 5,190.30, 7,785.45 and 2,274.30

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Solution

The fourth proportional to 5,190.30, 7,785.45 and 2,274.30 is: 3,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.30 : 7,785.45 = 2,274.30 : x
  2. Step 2: Convert to fraction form
    5,190.30/7,785.45 = 2,274.30/x
  3. Step 3: Cross multiply
    5,190.30x = 7,785.45 × 2,274.30
  4. Step 4: Simplify right side
    5,190.30x = 17,706,448.94
  5. Step 5: Solve for x
    x = 17,706,448.94/5,190.30
  6. Step 6: Final answer
    x = 3,411.45

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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.