Home / 5,430.22-8,145.16-1,534.62

Finding the Fourth Proportional to 5,430.22, 8,145.16 and 1,534.62

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Solution

The fourth proportional to 5,430.22, 8,145.16 and 1,534.62 is: 2,301.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.22 : 8,145.16 = 1,534.62 : x
  2. Step 2: Convert to fraction form
    5,430.22/8,145.16 = 1,534.62/x
  3. Step 3: Cross multiply
    5,430.22x = 8,145.16 × 1,534.62
  4. Step 4: Simplify right side
    5,430.22x = 12,499,725.44
  5. Step 5: Solve for x
    x = 12,499,725.44/5,430.22
  6. Step 6: Final answer
    x = 2,301.88

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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.