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Finding the Fourth Proportional to 2,835.84, 4,253.77 and 783.84

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Solution

The fourth proportional to 2,835.84, 4,253.77 and 783.84 is: 1,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.84 : 4,253.77 = 783.84 : x
  2. Step 2: Convert to fraction form
    2,835.84/4,253.77 = 783.84/x
  3. Step 3: Cross multiply
    2,835.84x = 4,253.77 × 783.84
  4. Step 4: Simplify right side
    2,835.84x = 3,334,287.60
  5. Step 5: Solve for x
    x = 3,334,287.60/2,835.84
  6. Step 6: Final answer
    x = 1,175.77

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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.