Home / 6,947.37-10,420.23-2,787.21

Finding the Fourth Proportional to 6,947.37, 10,420.23 and 2,787.21

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Solution

The fourth proportional to 6,947.37, 10,420.23 and 2,787.21 is: 4,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.37 : 10,420.23 = 2,787.21 : x
  2. Step 2: Convert to fraction form
    6,947.37/10,420.23 = 2,787.21/x
  3. Step 3: Cross multiply
    6,947.37x = 10,420.23 × 2,787.21
  4. Step 4: Simplify right side
    6,947.37x = 29,043,369.26
  5. Step 5: Solve for x
    x = 29,043,369.26/6,947.37
  6. Step 6: Final answer
    x = 4,180.48

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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.