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Finding the Fourth Proportional to 1,624.84, 2,435.74 and 650.68

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Solution

The fourth proportional to 1,624.84, 2,435.74 and 650.68 is: 975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.84 : 2,435.74 = 650.68 : x
  2. Step 2: Convert to fraction form
    1,624.84/2,435.74 = 650.68/x
  3. Step 3: Cross multiply
    1,624.84x = 2,435.74 × 650.68
  4. Step 4: Simplify right side
    1,624.84x = 1,584,887.30
  5. Step 5: Solve for x
    x = 1,584,887.30/1,624.84
  6. Step 6: Final answer
    x = 975.41

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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.