Home / 2,876.48-4,309.88-1,313.92

Finding the Fourth Proportional to 2,876.48, 4,309.88 and 1,313.92

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Solution

The fourth proportional to 2,876.48, 4,309.88 and 1,313.92 is: 1,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.48 : 4,309.88 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    2,876.48/4,309.88 = 1,313.92/x
  3. Step 3: Cross multiply
    2,876.48x = 4,309.88 × 1,313.92
  4. Step 4: Simplify right side
    2,876.48x = 5,662,837.53
  5. Step 5: Solve for x
    x = 5,662,837.53/2,876.48
  6. Step 6: Final answer
    x = 1,968.67

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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.