Home / 2,315.56-3,469.29-1,928.05

Finding the Fourth Proportional to 2,315.56, 3,469.29 and 1,928.05

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Solution

The fourth proportional to 2,315.56, 3,469.29 and 1,928.05 is: 2,888.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.56 : 3,469.29 = 1,928.05 : x
  2. Step 2: Convert to fraction form
    2,315.56/3,469.29 = 1,928.05/x
  3. Step 3: Cross multiply
    2,315.56x = 3,469.29 × 1,928.05
  4. Step 4: Simplify right side
    2,315.56x = 6,688,954.94
  5. Step 5: Solve for x
    x = 6,688,954.94/2,315.56
  6. Step 6: Final answer
    x = 2,888.70

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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.