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Finding the Fourth Proportional to 3,334.80, 4,602.30 and 1,918.95

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Solution

The fourth proportional to 3,334.80, 4,602.30 and 1,918.95 is: 2,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.80 : 4,602.30 = 1,918.95 : x
  2. Step 2: Convert to fraction form
    3,334.80/4,602.30 = 1,918.95/x
  3. Step 3: Cross multiply
    3,334.80x = 4,602.30 × 1,918.95
  4. Step 4: Simplify right side
    3,334.80x = 8,831,583.59
  5. Step 5: Solve for x
    x = 8,831,583.59/3,334.80
  6. Step 6: Final answer
    x = 2,648.31

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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.