Home / 5,111.12-7,664.54-1,599.92

Finding the Fourth Proportional to 5,111.12, 7,664.54 and 1,599.92

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Solution

The fourth proportional to 5,111.12, 7,664.54 and 1,599.92 is: 2,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.12 : 7,664.54 = 1,599.92 : x
  2. Step 2: Convert to fraction form
    5,111.12/7,664.54 = 1,599.92/x
  3. Step 3: Cross multiply
    5,111.12x = 7,664.54 × 1,599.92
  4. Step 4: Simplify right side
    5,111.12x = 12,262,650.84
  5. Step 5: Solve for x
    x = 12,262,650.84/5,111.12
  6. Step 6: Final answer
    x = 2,399.21

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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.