Home / 5,430.20-8,145.32-1,534.64

Finding the Fourth Proportional to 5,430.20, 8,145.32 and 1,534.64

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Solution

The fourth proportional to 5,430.20, 8,145.32 and 1,534.64 is: 2,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.20 : 8,145.32 = 1,534.64 : x
  2. Step 2: Convert to fraction form
    5,430.20/8,145.32 = 1,534.64/x
  3. Step 3: Cross multiply
    5,430.20x = 8,145.32 × 1,534.64
  4. Step 4: Simplify right side
    5,430.20x = 12,500,085.49
  5. Step 5: Solve for x
    x = 12,500,085.49/5,430.20
  6. Step 6: Final answer
    x = 2,301.96

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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.