Home / 5,230.50-7,845.75-2,111.88

Finding the Fourth Proportional to 5,230.50, 7,845.75 and 2,111.88

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Solution

The fourth proportional to 5,230.50, 7,845.75 and 2,111.88 is: 3,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.50 : 7,845.75 = 2,111.88 : x
  2. Step 2: Convert to fraction form
    5,230.50/7,845.75 = 2,111.88/x
  3. Step 3: Cross multiply
    5,230.50x = 7,845.75 × 2,111.88
  4. Step 4: Simplify right side
    5,230.50x = 16,569,282.51
  5. Step 5: Solve for x
    x = 16,569,282.51/5,230.50
  6. Step 6: Final answer
    x = 3,167.82

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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.