Home / 5,399.36-8,100.56-4,885.28

Finding the Fourth Proportional to 5,399.36, 8,100.56 and 4,885.28

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Solution

The fourth proportional to 5,399.36, 8,100.56 and 4,885.28 is: 7,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.36 : 8,100.56 = 4,885.28 : x
  2. Step 2: Convert to fraction form
    5,399.36/8,100.56 = 4,885.28/x
  3. Step 3: Cross multiply
    5,399.36x = 8,100.56 × 4,885.28
  4. Step 4: Simplify right side
    5,399.36x = 39,573,503.76
  5. Step 5: Solve for x
    x = 39,573,503.76/5,399.36
  6. Step 6: Final answer
    x = 7,329.30

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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.