Home / 2,875.50-4,313.52-1,231.68

Finding the Fourth Proportional to 2,875.50, 4,313.52 and 1,231.68

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Solution

The fourth proportional to 2,875.50, 4,313.52 and 1,231.68 is: 1,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.50 : 4,313.52 = 1,231.68 : x
  2. Step 2: Convert to fraction form
    2,875.50/4,313.52 = 1,231.68/x
  3. Step 3: Cross multiply
    2,875.50x = 4,313.52 × 1,231.68
  4. Step 4: Simplify right side
    2,875.50x = 5,312,876.31
  5. Step 5: Solve for x
    x = 5,312,876.31/2,875.50
  6. Step 6: Final answer
    x = 1,847.64

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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.