Home / 1,342.45-2,014.08-905.46

Finding the Fourth Proportional to 1,342.45, 2,014.08 and 905.46

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Solution

The fourth proportional to 1,342.45, 2,014.08 and 905.46 is: 1,358.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.45 : 2,014.08 = 905.46 : x
  2. Step 2: Convert to fraction form
    1,342.45/2,014.08 = 905.46/x
  3. Step 3: Cross multiply
    1,342.45x = 2,014.08 × 905.46
  4. Step 4: Simplify right side
    1,342.45x = 1,823,658.81
  5. Step 5: Solve for x
    x = 1,823,658.81/1,342.45
  6. Step 6: Final answer
    x = 1,358.46

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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.