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Finding the Fourth Proportional to 3,363.80, 4,642.16 and 1,851.42

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Solution

The fourth proportional to 3,363.80, 4,642.16 and 1,851.42 is: 2,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.80 : 4,642.16 = 1,851.42 : x
  2. Step 2: Convert to fraction form
    3,363.80/4,642.16 = 1,851.42/x
  3. Step 3: Cross multiply
    3,363.80x = 4,642.16 × 1,851.42
  4. Step 4: Simplify right side
    3,363.80x = 8,594,587.87
  5. Step 5: Solve for x
    x = 8,594,587.87/3,363.80
  6. Step 6: Final answer
    x = 2,555.02

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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.