Home / 1,500.83-2,251.08-405.30

Finding the Fourth Proportional to 1,500.83, 2,251.08 and 405.30

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Solution

The fourth proportional to 1,500.83, 2,251.08 and 405.30 is: 607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.83 : 2,251.08 = 405.30 : x
  2. Step 2: Convert to fraction form
    1,500.83/2,251.08 = 405.30/x
  3. Step 3: Cross multiply
    1,500.83x = 2,251.08 × 405.30
  4. Step 4: Simplify right side
    1,500.83x = 912,362.72
  5. Step 5: Solve for x
    x = 912,362.72/1,500.83
  6. Step 6: Final answer
    x = 607.91

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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.