Home / 3,315.48-4,973.19-1,125.75

Finding the Fourth Proportional to 3,315.48, 4,973.19 and 1,125.75

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Solution

The fourth proportional to 3,315.48, 4,973.19 and 1,125.75 is: 1,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.48 : 4,973.19 = 1,125.75 : x
  2. Step 2: Convert to fraction form
    3,315.48/4,973.19 = 1,125.75/x
  3. Step 3: Cross multiply
    3,315.48x = 4,973.19 × 1,125.75
  4. Step 4: Simplify right side
    3,315.48x = 5,598,568.64
  5. Step 5: Solve for x
    x = 5,598,568.64/3,315.48
  6. Step 6: Final answer
    x = 1,688.61

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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.