Home / 1,802.14-2,703.20-1,391.87

Finding the Fourth Proportional to 1,802.14, 2,703.20 and 1,391.87

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Solution

The fourth proportional to 1,802.14, 2,703.20 and 1,391.87 is: 2,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.14 : 2,703.20 = 1,391.87 : x
  2. Step 2: Convert to fraction form
    1,802.14/2,703.20 = 1,391.87/x
  3. Step 3: Cross multiply
    1,802.14x = 2,703.20 × 1,391.87
  4. Step 4: Simplify right side
    1,802.14x = 3,762,502.98
  5. Step 5: Solve for x
    x = 3,762,502.98/1,802.14
  6. Step 6: Final answer
    x = 2,087.80

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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.