Home / 5,190.03-7,785.05-1,294.43

Finding the Fourth Proportional to 5,190.03, 7,785.05 and 1,294.43

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Solution

The fourth proportional to 5,190.03, 7,785.05 and 1,294.43 is: 1,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.03 : 7,785.05 = 1,294.43 : x
  2. Step 2: Convert to fraction form
    5,190.03/7,785.05 = 1,294.43/x
  3. Step 3: Cross multiply
    5,190.03x = 7,785.05 × 1,294.43
  4. Step 4: Simplify right side
    5,190.03x = 10,077,156.87
  5. Step 5: Solve for x
    x = 10,077,156.87/5,190.03
  6. Step 6: Final answer
    x = 1,941.64

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Double scale
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Similar ratio
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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.