Home / 1,401.01-2,102.30-621.16

Finding the Fourth Proportional to 1,401.01, 2,102.30 and 621.16

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Solution

The fourth proportional to 1,401.01, 2,102.30 and 621.16 is: 932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.01 : 2,102.30 = 621.16 : x
  2. Step 2: Convert to fraction form
    1,401.01/2,102.30 = 621.16/x
  3. Step 3: Cross multiply
    1,401.01x = 2,102.30 × 621.16
  4. Step 4: Simplify right side
    1,401.01x = 1,305,864.67
  5. Step 5: Solve for x
    x = 1,305,864.67/1,401.01
  6. Step 6: Final answer
    x = 932.09

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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.