Home / 1,901-2,623.20-1,403.92

Finding the Fourth Proportional to 1,901, 2,623.20 and 1,403.92

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Solution

The fourth proportional to 1,901, 2,623.20 and 1,403.92 is: 1,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901 : 2,623.20 = 1,403.92 : x
  2. Step 2: Convert to fraction form
    1,901/2,623.20 = 1,403.92/x
  3. Step 3: Cross multiply
    1,901x = 2,623.20 × 1,403.92
  4. Step 4: Simplify right side
    1,901x = 3,682,762.94
  5. Step 5: Solve for x
    x = 3,682,762.94/1,901
  6. Step 6: Final answer
    x = 1,937.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.