Home / 1,809.74-2,711.70-1,114.35

Finding the Fourth Proportional to 1,809.74, 2,711.70 and 1,114.35

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Solution

The fourth proportional to 1,809.74, 2,711.70 and 1,114.35 is: 1,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.74 : 2,711.70 = 1,114.35 : x
  2. Step 2: Convert to fraction form
    1,809.74/2,711.70 = 1,114.35/x
  3. Step 3: Cross multiply
    1,809.74x = 2,711.70 × 1,114.35
  4. Step 4: Simplify right side
    1,809.74x = 3,021,782.90
  5. Step 5: Solve for x
    x = 3,021,782.90/1,809.74
  6. Step 6: Final answer
    x = 1,669.74

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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.