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Finding the Fourth Proportional to 1,824.03, 2,733.75 and 782.80

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Solution

The fourth proportional to 1,824.03, 2,733.75 and 782.80 is: 1,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.03 : 2,733.75 = 782.80 : x
  2. Step 2: Convert to fraction form
    1,824.03/2,733.75 = 782.80/x
  3. Step 3: Cross multiply
    1,824.03x = 2,733.75 × 782.80
  4. Step 4: Simplify right side
    1,824.03x = 2,139,979.50
  5. Step 5: Solve for x
    x = 2,139,979.50/1,824.03
  6. Step 6: Final answer
    x = 1,173.22

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1.5x scale

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.