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Finding the Fourth Proportional to 3,410.58, 4,706.31 and 1,918.66

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Solution

The fourth proportional to 3,410.58, 4,706.31 and 1,918.66 is: 2,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.58 : 4,706.31 = 1,918.66 : x
  2. Step 2: Convert to fraction form
    3,410.58/4,706.31 = 1,918.66/x
  3. Step 3: Cross multiply
    3,410.58x = 4,706.31 × 1,918.66
  4. Step 4: Simplify right side
    3,410.58x = 9,029,808.74
  5. Step 5: Solve for x
    x = 9,029,808.74/3,410.58
  6. Step 6: Final answer
    x = 2,647.59

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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.