Home / 1,401.41-2,102.10-579.67

Finding the Fourth Proportional to 1,401.41, 2,102.10 and 579.67

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Solution

The fourth proportional to 1,401.41, 2,102.10 and 579.67 is: 869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.41 : 2,102.10 = 579.67 : x
  2. Step 2: Convert to fraction form
    1,401.41/2,102.10 = 579.67/x
  3. Step 3: Cross multiply
    1,401.41x = 2,102.10 × 579.67
  4. Step 4: Simplify right side
    1,401.41x = 1,218,513.80
  5. Step 5: Solve for x
    x = 1,218,513.80/1,401.41
  6. Step 6: Final answer
    x = 869.49

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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.