Home / 2,478.96-3,719.16-1,511.28

Finding the Fourth Proportional to 2,478.96, 3,719.16 and 1,511.28

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Solution

The fourth proportional to 2,478.96, 3,719.16 and 1,511.28 is: 2,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.96 : 3,719.16 = 1,511.28 : x
  2. Step 2: Convert to fraction form
    2,478.96/3,719.16 = 1,511.28/x
  3. Step 3: Cross multiply
    2,478.96x = 3,719.16 × 1,511.28
  4. Step 4: Simplify right side
    2,478.96x = 5,620,692.12
  5. Step 5: Solve for x
    x = 5,620,692.12/2,478.96
  6. Step 6: Final answer
    x = 2,267.36

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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.