Home / 5,153.76-7,112.88-3,266.28

Finding the Fourth Proportional to 5,153.76, 7,112.88 and 3,266.28

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Solution

The fourth proportional to 5,153.76, 7,112.88 and 3,266.28 is: 4,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.76 : 7,112.88 = 3,266.28 : x
  2. Step 2: Convert to fraction form
    5,153.76/7,112.88 = 3,266.28/x
  3. Step 3: Cross multiply
    5,153.76x = 7,112.88 × 3,266.28
  4. Step 4: Simplify right side
    5,153.76x = 23,232,657.69
  5. Step 5: Solve for x
    x = 23,232,657.69/5,153.76
  6. Step 6: Final answer
    x = 4,507.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.