Home / 1,401.45-2,102.17-477.01

Finding the Fourth Proportional to 1,401.45, 2,102.17 and 477.01

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Solution

The fourth proportional to 1,401.45, 2,102.17 and 477.01 is: 715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.45 : 2,102.17 = 477.01 : x
  2. Step 2: Convert to fraction form
    1,401.45/2,102.17 = 477.01/x
  3. Step 3: Cross multiply
    1,401.45x = 2,102.17 × 477.01
  4. Step 4: Simplify right side
    1,401.45x = 1,002,757.20
  5. Step 5: Solve for x
    x = 1,002,757.20/1,401.45
  6. Step 6: Final answer
    x = 715.52

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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.