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Finding the Fourth Proportional to 3,465.79, 4,782.65 and 1,893.85

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Solution

The fourth proportional to 3,465.79, 4,782.65 and 1,893.85 is: 2,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.79 : 4,782.65 = 1,893.85 : x
  2. Step 2: Convert to fraction form
    3,465.79/4,782.65 = 1,893.85/x
  3. Step 3: Cross multiply
    3,465.79x = 4,782.65 × 1,893.85
  4. Step 4: Simplify right side
    3,465.79x = 9,057,600.28
  5. Step 5: Solve for x
    x = 9,057,600.28/3,465.79
  6. Step 6: Final answer
    x = 2,613.43

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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.