Home / 5,112.56-7,056.64-3,017.36

Finding the Fourth Proportional to 5,112.56, 7,056.64 and 3,017.36

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Solution

The fourth proportional to 5,112.56, 7,056.64 and 3,017.36 is: 4,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.56 : 7,056.64 = 3,017.36 : x
  2. Step 2: Convert to fraction form
    5,112.56/7,056.64 = 3,017.36/x
  3. Step 3: Cross multiply
    5,112.56x = 7,056.64 × 3,017.36
  4. Step 4: Simplify right side
    5,112.56x = 21,292,423.27
  5. Step 5: Solve for x
    x = 21,292,423.27/5,112.56
  6. Step 6: Final answer
    x = 4,164.73

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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.