Home / 3,012.30-4,157.10-1,686.06

Finding the Fourth Proportional to 3,012.30, 4,157.10 and 1,686.06

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Solution

The fourth proportional to 3,012.30, 4,157.10 and 1,686.06 is: 2,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.30 : 4,157.10 = 1,686.06 : x
  2. Step 2: Convert to fraction form
    3,012.30/4,157.10 = 1,686.06/x
  3. Step 3: Cross multiply
    3,012.30x = 4,157.10 × 1,686.06
  4. Step 4: Simplify right side
    3,012.30x = 7,009,120.03
  5. Step 5: Solve for x
    x = 7,009,120.03/3,012.30
  6. Step 6: Final answer
    x = 2,326.83

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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.