Home / 4,947.40-7,415.34-2,176.12

Finding the Fourth Proportional to 4,947.40, 7,415.34 and 2,176.12

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Solution

The fourth proportional to 4,947.40, 7,415.34 and 2,176.12 is: 3,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.40 : 7,415.34 = 2,176.12 : x
  2. Step 2: Convert to fraction form
    4,947.40/7,415.34 = 2,176.12/x
  3. Step 3: Cross multiply
    4,947.40x = 7,415.34 × 2,176.12
  4. Step 4: Simplify right side
    4,947.40x = 16,136,669.68
  5. Step 5: Solve for x
    x = 16,136,669.68/4,947.40
  6. Step 6: Final answer
    x = 3,261.65

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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.