Home / 2,686.09-3,705.37-1,566.62

Finding the Fourth Proportional to 2,686.09, 3,705.37 and 1,566.62

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Solution

The fourth proportional to 2,686.09, 3,705.37 and 1,566.62 is: 2,161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.09 : 3,705.37 = 1,566.62 : x
  2. Step 2: Convert to fraction form
    2,686.09/3,705.37 = 1,566.62/x
  3. Step 3: Cross multiply
    2,686.09x = 3,705.37 × 1,566.62
  4. Step 4: Simplify right side
    2,686.09x = 5,804,880.39
  5. Step 5: Solve for x
    x = 5,804,880.39/2,686.09
  6. Step 6: Final answer
    x = 2,161.09

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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.