Home / 5,430.64-8,127.60-2,958.88

Finding the Fourth Proportional to 5,430.64, 8,127.60 and 2,958.88

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Solution

The fourth proportional to 5,430.64, 8,127.60 and 2,958.88 is: 4,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.64 : 8,127.60 = 2,958.88 : x
  2. Step 2: Convert to fraction form
    5,430.64/8,127.60 = 2,958.88/x
  3. Step 3: Cross multiply
    5,430.64x = 8,127.60 × 2,958.88
  4. Step 4: Simplify right side
    5,430.64x = 24,048,593.09
  5. Step 5: Solve for x
    x = 24,048,593.09/5,430.64
  6. Step 6: Final answer
    x = 4,428.32

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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.