Home / 4,872.81-7,309.98-2,100.26

Finding the Fourth Proportional to 4,872.81, 7,309.98 and 2,100.26

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Solution

The fourth proportional to 4,872.81, 7,309.98 and 2,100.26 is: 3,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.81 : 7,309.98 = 2,100.26 : x
  2. Step 2: Convert to fraction form
    4,872.81/7,309.98 = 2,100.26/x
  3. Step 3: Cross multiply
    4,872.81x = 7,309.98 × 2,100.26
  4. Step 4: Simplify right side
    4,872.81x = 15,352,876.87
  5. Step 5: Solve for x
    x = 15,352,876.87/4,872.81
  6. Step 6: Final answer
    x = 3,150.72

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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.