Home / 5,431.50-7,495.56-2,947.50

Finding the Fourth Proportional to 5,431.50, 7,495.56 and 2,947.50

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Solution

The fourth proportional to 5,431.50, 7,495.56 and 2,947.50 is: 4,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.50 : 7,495.56 = 2,947.50 : x
  2. Step 2: Convert to fraction form
    5,431.50/7,495.56 = 2,947.50/x
  3. Step 3: Cross multiply
    5,431.50x = 7,495.56 × 2,947.50
  4. Step 4: Simplify right side
    5,431.50x = 22,093,163.10
  5. Step 5: Solve for x
    x = 22,093,163.10/5,431.50
  6. Step 6: Final answer
    x = 4,067.60

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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.