Home / 5,294.21-7,940.70-1,398.92

Finding the Fourth Proportional to 5,294.21, 7,940.70 and 1,398.92

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Solution

The fourth proportional to 5,294.21, 7,940.70 and 1,398.92 is: 2,098.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.21 : 7,940.70 = 1,398.92 : x
  2. Step 2: Convert to fraction form
    5,294.21/7,940.70 = 1,398.92/x
  3. Step 3: Cross multiply
    5,294.21x = 7,940.70 × 1,398.92
  4. Step 4: Simplify right side
    5,294.21x = 11,108,404.04
  5. Step 5: Solve for x
    x = 11,108,404.04/5,294.21
  6. Step 6: Final answer
    x = 2,098.22

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1.5x scale

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.