Home / 1,624.20-2,435.76-469.68

Finding the Fourth Proportional to 1,624.20, 2,435.76 and 469.68

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Solution

The fourth proportional to 1,624.20, 2,435.76 and 469.68 is: 704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.20 : 2,435.76 = 469.68 : x
  2. Step 2: Convert to fraction form
    1,624.20/2,435.76 = 469.68/x
  3. Step 3: Cross multiply
    1,624.20x = 2,435.76 × 469.68
  4. Step 4: Simplify right side
    1,624.20x = 1,144,027.76
  5. Step 5: Solve for x
    x = 1,144,027.76/1,624.20
  6. Step 6: Final answer
    x = 704.36

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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.