Home / 1,805.20-2,491.34-1,133.49

Finding the Fourth Proportional to 1,805.20, 2,491.34 and 1,133.49

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Solution

The fourth proportional to 1,805.20, 2,491.34 and 1,133.49 is: 1,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.20 : 2,491.34 = 1,133.49 : x
  2. Step 2: Convert to fraction form
    1,805.20/2,491.34 = 1,133.49/x
  3. Step 3: Cross multiply
    1,805.20x = 2,491.34 × 1,133.49
  4. Step 4: Simplify right side
    1,805.20x = 2,823,908.98
  5. Step 5: Solve for x
    x = 2,823,908.98/1,805.20
  6. Step 6: Final answer
    x = 1,564.32

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1.5x scale

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.