Home / 1,628.05-2,439.24-977.35

Finding the Fourth Proportional to 1,628.05, 2,439.24 and 977.35

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Solution

The fourth proportional to 1,628.05, 2,439.24 and 977.35 is: 1,464.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.05 : 2,439.24 = 977.35 : x
  2. Step 2: Convert to fraction form
    1,628.05/2,439.24 = 977.35/x
  3. Step 3: Cross multiply
    1,628.05x = 2,439.24 × 977.35
  4. Step 4: Simplify right side
    1,628.05x = 2,384,000.98
  5. Step 5: Solve for x
    x = 2,384,000.98/1,628.05
  6. Step 6: Final answer
    x = 1,464.33

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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.