Home / 1,401.36-2,102.08-476.96

Finding the Fourth Proportional to 1,401.36, 2,102.08 and 476.96

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Solution

The fourth proportional to 1,401.36, 2,102.08 and 476.96 is: 715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.36 : 2,102.08 = 476.96 : x
  2. Step 2: Convert to fraction form
    1,401.36/2,102.08 = 476.96/x
  3. Step 3: Cross multiply
    1,401.36x = 2,102.08 × 476.96
  4. Step 4: Simplify right side
    1,401.36x = 1,002,608.08
  5. Step 5: Solve for x
    x = 1,002,608.08/1,401.36
  6. Step 6: Final answer
    x = 715.45

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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.