Home / 1,624.62-2,239.80-1,224.56

Finding the Fourth Proportional to 1,624.62, 2,239.80 and 1,224.56

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Solution

The fourth proportional to 1,624.62, 2,239.80 and 1,224.56 is: 1,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.62 : 2,239.80 = 1,224.56 : x
  2. Step 2: Convert to fraction form
    1,624.62/2,239.80 = 1,224.56/x
  3. Step 3: Cross multiply
    1,624.62x = 2,239.80 × 1,224.56
  4. Step 4: Simplify right side
    1,624.62x = 2,742,769.49
  5. Step 5: Solve for x
    x = 2,742,769.49/1,624.62
  6. Step 6: Final answer
    x = 1,688.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.