Home / 2,518.08-3,775.68-977.28

Finding the Fourth Proportional to 2,518.08, 3,775.68 and 977.28

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Solution

The fourth proportional to 2,518.08, 3,775.68 and 977.28 is: 1,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.08 : 3,775.68 = 977.28 : x
  2. Step 2: Convert to fraction form
    2,518.08/3,775.68 = 977.28/x
  3. Step 3: Cross multiply
    2,518.08x = 3,775.68 × 977.28
  4. Step 4: Simplify right side
    2,518.08x = 3,689,896.55
  5. Step 5: Solve for x
    x = 3,689,896.55/2,518.08
  6. Step 6: Final answer
    x = 1,465.36

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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.