Home / 5,430.23-8,145.34-3,494.73

Finding the Fourth Proportional to 5,430.23, 8,145.34 and 3,494.73

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Solution

The fourth proportional to 5,430.23, 8,145.34 and 3,494.73 is: 5,242.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.23 : 8,145.34 = 3,494.73 : x
  2. Step 2: Convert to fraction form
    5,430.23/8,145.34 = 3,494.73/x
  3. Step 3: Cross multiply
    5,430.23x = 8,145.34 × 3,494.73
  4. Step 4: Simplify right side
    5,430.23x = 28,465,764.06
  5. Step 5: Solve for x
    x = 28,465,764.06/5,430.23
  6. Step 6: Final answer
    x = 5,242.09

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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.