Home / 1,401.21-2,102.27-477.35

Finding the Fourth Proportional to 1,401.21, 2,102.27 and 477.35

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Solution

The fourth proportional to 1,401.21, 2,102.27 and 477.35 is: 716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.21 : 2,102.27 = 477.35 : x
  2. Step 2: Convert to fraction form
    1,401.21/2,102.27 = 477.35/x
  3. Step 3: Cross multiply
    1,401.21x = 2,102.27 × 477.35
  4. Step 4: Simplify right side
    1,401.21x = 1,003,521.45
  5. Step 5: Solve for x
    x = 1,003,521.45/1,401.21
  6. Step 6: Final answer
    x = 716.18

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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.