Home / 5,250.60-7,880.72-2,655.36

Finding the Fourth Proportional to 5,250.60, 7,880.72 and 2,655.36

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Solution

The fourth proportional to 5,250.60, 7,880.72 and 2,655.36 is: 3,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.60 : 7,880.72 = 2,655.36 : x
  2. Step 2: Convert to fraction form
    5,250.60/7,880.72 = 2,655.36/x
  3. Step 3: Cross multiply
    5,250.60x = 7,880.72 × 2,655.36
  4. Step 4: Simplify right side
    5,250.60x = 20,926,148.66
  5. Step 5: Solve for x
    x = 20,926,148.66/5,250.60
  6. Step 6: Final answer
    x = 3,985.48

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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.